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