Perhaps you should try some spelling variations:
"dang quang nhap snippets" » "dung quang nhap snippets", "nang quan nhap snippets", "dang hung nhap snippets", "dang quang nam snippets", "dang quang ngai snippets", "dang quang khai snippets", "dang quang nhap slippers"
"dung java java snippets" » "dung va java snippets", "dung java java slippers"
"locating bug code snippets" » "locating bug code slippers", "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("dang quang nhap snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dang quang nhap snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dang quang nhap snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dang quang nhap snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.