Perhaps you should try some spelling variations:
"dong trinh cau snippets" » "cong trinh cau snippets", "dong tinh cau snippets", "dong tranh cau snippets", "dong trinh chat snippets", "dong trinh chao snippets", "dong trinh tu snippets"
"dung bug code snippets" » "dung dung code snippets", "dung hung code snippets", "dung rung code snippets", "dung bug core snippets"
"locating bug code snippets" » "locating bug core snippets"

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

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