Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets"
"dong trinh java snippets" » "cong trinh java snippets", "dong tinh java snippets", "dong tranh java snippets"
"duong dung de snippets" » "cuong dung de snippets", "dung dung de snippets", "duong dang de snippets", "duong dung he snippets", "duong dung dat 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: (((("dong trinh java snippets") or ("duong dung de snippets"))) or ("locating bugs code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dong trinh java snippets") OR ("duong dung de snippets"))) OR ("locating bugs code snippets")).
• Removing quotes may allow a broader search: (((( dong trinh java snippets ) or ( duong dung de snippets ))) or ( locating bugs code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dong trinh java snippets") or ("duong dung de snippets"))) or ("locating bugs code snippets"))*.