Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"luan doi dan slippers" » "quan doi dan slippers", "lua doi dan slippers", "luan gioi dan slippers", "luan hoi dan slippers", "luan doi ban slippers", "luan doi dau slippers", "luan doi dan slippery", "luan doi dan 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 ("luan doi dan slippers"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung java java snippets") OR ("luan doi dan slippers"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung java java snippets ) or ( luan doi dan slippers ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung java java snippets") or ("luan doi dan slippers"))) or ("locating bug code snippets"))*.