Perhaps you should try some spelling variations:
"nhan lieu da snippets" » "nhan dieu da snippets", "nhan hieu da snippets", "nhan tieu da snippets", "nhan lieu dao snippets", "nhan lieu dai snippets", "nhan lieu dia 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: (((("nhan lieu da snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("nhan lieu da snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nhan lieu da snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nhan lieu da snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.