diff --git a/README.md b/README.md
index f7c7a3a..b5a8aeb 100644
--- a/README.md
+++ b/README.md
@@ -44,6 +44,18 @@ Specify a video repository using absolute path (If you are a Windows user, I hig
 ```
 gotube -d -id C0DPdy98e4c -q medium -ext video/mp4 -rep /Users/yourusername/Documents/videos
 ```
+Try search by keywords and see what would return:
+```
+gotube -l -s "curry highlights"
+```
+Try get more results by querying top k results explicitly (If k is larger than the number of all videos return, the program would return all the videos):
+```
+gotube -l -s "curry highlights" -k 5
+```
+Download all of them:
+```
+gotube -d -s "curry highlights" -k 5 -rep /Users/yourusername/Documents/videos
+```
 
 #Library usage
 ```go
diff --git a/api/video.go b/api/video.go
index 86a68ec..1c9c9c4 100644
--- a/api/video.go
+++ b/api/video.go
@@ -22,8 +22,8 @@ type Video struct {
 * that shared the same YouTube url.
  */
 type VideoList struct {
-	Title  string
-	Videos []Video
+	Title   string
+	Videos  []Video
 }
 
 /*
diff --git a/script.go b/script.go
index 8e2169c..01f952e 100644
--- a/script.go
+++ b/script.go
@@ -12,8 +12,9 @@ func main() {
 	isRetList := flag.Bool("l", false, "use this flag to retrieve video list")
 	url := flag.String("url", "", "video url")
 	id := flag.String("id", "", "video id")
-	search := flag.String("-search", "", "search by key words")
-	flag.StringVar(search, "s", "", "search by key words")
+	search := flag.String("-search", "", "search by key words (specify top k with command -k)")
+	flag.StringVar(search, "s", "", "search by key words (specify top k with command -k)")
+	k := flag.Int("k", 1, "return top k results, only valid with key word searching")
 	rep := flag.String("-videorepository", "", "(optional) repository to store videos")
 	flag.StringVar(rep, "rep", "", "(optional) repository to store videos")
 	quality := flag.String("-quality", "", "(optional) video quality. e.g. medium")
@@ -69,26 +70,44 @@ func main() {
 	} else if *id != "" {
 		vl, err = GetVideoListFromId(*id)
 	} else {
-		ids, err := GetTopKVideoIds(*search, 1)
+		ids, err := GetTopKVideoIds(*search, *k)
 		if err != nil {
 			log.Fatal(err)
 		}
-		vl, err = GetVideoListFromId(ids[0])
+		if *isRetList {
+			fmt.Printf("The top %v results for key words \"%v\" are:\n\n", *k, *search)
+		}
+		for _, vid := range ids {
+			vl, err = GetVideoListFromId(vid)
+			if err != nil {
+				log.Fatal(err)
+			}
+			Exec(vl, *isDownload, *isRetList, *rep, *quality, *extension)
+		}
+		return
 	}
 	if err != nil {
 		log.Fatal(err)
 	}
-	//Choose either downloading or retrieving video list
-	if *isDownload {
-		err = vl.Download(*rep, *quality, *extension)
+	Exec(vl, *isDownload, *isRetList, *rep, *quality, *extension)
+}
+
+/*
+* Choose either downloading or retrieving video list
+*/
+func Exec(vl VideoList, isDownload, isRetList bool, rep, quality, extension string) {
+	if isDownload {
+		fmt.Printf("Downloading %v...\n", vl.Title)
+		err := vl.Download(rep, quality, extension)
 		if err != nil {
 			log.Fatal(err)
 		}
-	} else if *isRetList {
-		err = vl.Filter(*quality, *extension)
+	} else if isRetList {
+		fmt.Printf("Videos under the name of %v:\n", vl.Title)
+		err := vl.Filter(quality, extension)
 		if err != nil {
 			log.Fatal(err)
 		}
 		fmt.Println(vl)
 	}
-}
+}
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