Perhaps you should try some spelling variations:
"xay dung code snippets" » "xay dung cong snippets", "xay dung co snippets", "xay dung de snippets", "xay dung code slippers"
"dung vbugss code snippets" » "dung vbugss code slippers", "dung vbungss code snippets", "dung vbugsss code snippets"
"locating bug code snippets" » "locating bug code slippers", "locating bung code snippets", "locating bugs code 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: (((("dung vbugss code snippets") or ("xay dung code snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung vbugss code snippets") OR ("xay dung code snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung vbugss code snippets ) or ( xay dung code snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung vbugss code snippets") or ("xay dung code snippets"))) or ("locating bug code snippets"))*.