Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets", "locating bugs code slippers"
"dung trong code snippets" » "dung trong cong snippets", "dung trong co snippets", "dung trong che snippets", "dung trong code slippers"
"van thu code snippets" » "van thu cong snippets", "van thu co snippets", "van thu code slippers"

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 trong code snippets") or ("van thu code snippets"))) or ("locating bugs code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung trong code snippets") OR ("van thu code snippets"))) OR ("locating bugs code snippets")).
• Removing quotes may allow a broader search: (((( dung trong code snippets ) or ( van thu code snippets ))) or ( locating bugs code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung trong code snippets") or ("van thu code snippets"))) or ("locating bugs code snippets"))*.