Perhaps you should try some spelling variations:
"trinh quan vat slippers" » "tinh quang vat slippers", "trinh luat vat slippers", "trinh han vat slippers", "trinh quan va slippers", "trinh quan sat slippers", "trinh quan van slippers", "trinh quan vat slippery", "trinh quan 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"

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 ("trinh quan 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 quan vat slippers"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung java java snippets ) or ( trinh quan vat slippers ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung java java snippets") or ("trinh quan vat slippers"))) or ("locating bug code snippets"))*.