Perhaps you should try some spelling variations:
"nhanh thang cac snippets" » "nhanh thanh cac snippets", "nhanh quang cac snippets", "hanh trang cac snippets", "nhanh thong cac snippets", "nhanh hang cac 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 thang cac 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 thang cac snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nhanh thang cac snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nhanh thang cac snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.