Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"doc thau phi slippers" » "doc than phi slippers", "duoc thao phi slippers", "doc thanh phi slippers", "doc chau phi slippers", "doc chau phu slippers", "doc huu phi slippers", "doc thau phi slippery", "doc thau phi 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 ("doc thau phi slippers"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung java java snippets") OR ("doc thau phi slippers"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung java java snippets ) or ( doc thau phi slippers ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung java java snippets") or ("doc thau phi slippers"))) or ("locating bug code snippets"))*.