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