Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets", "locating bugs code slippers"
"van trinh quoc snippets" » "van trinh quan snippets", "van chinh quoc snippets", "van trinh doc snippets", "van thinh quoc snippets", "van tinh quoc snippets", "dan trinh quoc snippets", "van trinh quoc slippers"
"dung java java snippets" » "dung va java snippets", "dung java java slippers"

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