Perhaps you should try some spelling variations:
"trinh trinh lap snippets" » "trinh tinh lap snippets", "trinh kinh lap snippets", "trinh tin lap snippets", "trinh trinh luat snippets", "trinh trinh luan snippets", "trinh trinh phap snippets"
"dung ung co snippets" » "dung trung co snippets", "dung quang co snippets", "dung chung co snippets", "dung dung co snippets", "dung dung cho snippets", "dung duong co snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs 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: (((("trinh trinh lap snippets") or ("dung ung co snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("trinh trinh lap snippets") OR ("dung ung co snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( trinh trinh lap snippets ) or ( dung ung co snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("trinh trinh lap snippets") or ("dung ung co snippets"))) or ("locating bug code snippets"))*.