Perhaps you should try some spelling variations:
"trinh nhap danh snippets" » "trinh nha danh snippets", "trinh phap danh snippets", "trinh han danh snippets", "trinh nhap doanh snippets", "trinh nhat danh snippets", "trinh hop danh snippets"
"dung cac co snippets" » "luong cac co snippets", "dung cho co snippets", "dung tai co snippets", "dung cac cong 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: (((("trinh nhap danh snippets") or ("dung cac co snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("trinh nhap danh snippets") OR ("dung cac co snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( trinh nhap danh snippets ) or ( dung cac co snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("trinh nhap danh snippets") or ("dung cac co snippets"))) or ("locating bug code snippets"))*.