Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"trinh ly luong slippers" » "trinh ky luong slippers", "trinh do luong slippers", "trinh tu luong slippers", "trinh ly luan slippers", "trinh ly trong slippers", "trinh ly luong slippery", "trinh ly luong grippers"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core 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 java java snippets") or ("trinh ly luong slippers"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung java java snippets") OR ("trinh ly luong slippers"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung java java snippets ) or ( trinh ly luong slippers ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung java java snippets") or ("trinh ly luong slippers"))) or ("locating bug code snippets"))*.