Perhaps you should try some spelling variations:
"dung nhan co snippets" » "dung luan co snippets", "dung nhan con snippets", "dung phan co snippets", "dung nhan mo snippets"
"diem cau code snippets" » "dieu can code snippets", "diem cau cong snippets", "diem cau de snippets", "diem cfd code snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets"

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("diem cau code snippets") or ("dung nhan co snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("diem cau code snippets") OR ("dung nhan co snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( diem cau code snippets ) or ( dung nhan co snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("diem cau code snippets") or ("dung nhan co snippets"))) or ("locating bug code snippets"))*.