Perhaps you should try some spelling variations:
"trinh luan tac snippets" » "trinh luat tac snippets", "trinh quan tac snippets", "trinh han tac snippets", "trinh luan tach snippets", "trinh luan dac snippets", "trinh luan thuc snippets", "trinh luan tac slippers"
"dung hung code snippets" » "dung chung code snippets", "dung nhung code snippets", "dung huong code snippets", "dung hung code slippers"
"locating bug code snippets" » "locating bug code slippers", "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: (((("trinh luan tac snippets") or ("dung hung code snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("trinh luan tac snippets") OR ("dung hung code snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( trinh luan tac snippets ) or ( dung hung code snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("trinh luan tac snippets") or ("dung hung code snippets"))) or ("locating bug code snippets"))*.