Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"chon dat duoc slippers" » "hon dat duoc slippers", "chinh dat duoc slippers", "cho dao duoc slippers", "chon dat nuoc slippers", "chon da duoc slippers", "chon luat duoc slippers", "chon dat duoc slippery", "chon dat duoc grippers"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

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 ("chon dat duoc slippers"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung java java snippets") OR ("chon dat duoc slippers"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung java java snippets ) or ( chon dat duoc slippers ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung java java snippets") or ("chon dat duoc slippers"))) or ("locating bug code snippets"))*.