Perhaps you should try some spelling variations:
"trinh phap vat slippers" » "trinh phan vat slippers", "trinh han vat slippers", "trinh chat vat slippers", "trinh phap luat slippers", "trinh phap phat slippers", "trinh phap viet slippers", "trinh phap vat slippery", "trinh phap vat grippers"
"dung java java snippets" » "dung va java snippets"
"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 ("trinh phap vat slippers"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung java java snippets") OR ("trinh phap vat slippers"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung java java snippets ) or ( trinh phap vat slippers ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung java java snippets") or ("trinh phap vat slippers"))) or ("locating bug code snippets"))*.