Perhaps you should try some spelling variations:
"nhanh thuc can snippets" » "nhan thuc can snippets", "thanh thuy can snippets", "anh thuc can snippets", "nhanh thuc chan snippets", "nhanh thuc dan snippets", "nhanh thuc van snippets"
"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: (((("nhanh thuc can snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("nhanh thuc can snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nhanh thuc can snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nhanh thuc can snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.