Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"dan vach tran slippers" » "dan sach tranh slippers", "dan hach toan slippers", "dan sach tren slippers", "dan cach tran slippers", "dan va tran slippers", "dan bac tran slippers", "dan vach tran slippery", "dan vach tran 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 ("dan vach tran slippers"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung java java snippets") OR ("dan vach tran slippers"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung java java snippets ) or ( dan vach tran slippers ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung java java snippets") or ("dan vach tran slippers"))) or ("locating bug code snippets"))*.