Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets", "locating bugs code slippers"
"trinh khac san snippets" » "trinh khai san snippets", "trinh kham san snippets", "tinh khac san snippets", "trinh khach san snippets", "trinh khac gan snippets", "trinh khac son snippets", "trinh khac san slippers"
"dung java java snippets" » "dung va java snippets", "dung java java 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 java java snippets") or ("trinh khac san snippets"))) or ("locating bugs code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung java java snippets") OR ("trinh khac san snippets"))) OR ("locating bugs code snippets")).
• Removing quotes may allow a broader search: (((( dung java java snippets ) or ( trinh khac san snippets ))) or ( locating bugs code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung java java snippets") or ("trinh khac san snippets"))) or ("locating bugs code snippets"))*.