Perhaps you should try some spelling variations:
"quan cong san snippets" » "qua cong san snippets", "luan cong san snippets", "quan dong san snippets", "quan cong tac snippets", "quan cong san slippers"
"dung va java snippets" » "dung java java snippets", "dung va java slippers"
"locating bug code snippets" » "locating bug code slippers", "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: (((("quan cong san snippets") or ("dung va java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("quan cong san snippets") OR ("dung va java snippets"))) OR ("locating bug code snippets"))*.
• Removing quotes may allow a broader search: (((( quan cong san snippets ) or ( dung va java snippets ))) or ( locating bug code snippets ))*.