Perhaps you should try some spelling variations:
"trinh duoc lieu snippets" » "trinh doc lieu snippets", "trinh duc lieu snippets", "trinh quoc lieu snippets", "trinh du lieu snippets", "trinh duoc lieu 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"

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 duoc lieu 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 duoc lieu snippets") OR ("dung hung code snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( trinh duoc lieu snippets ) or ( dung hung code snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("trinh duoc lieu snippets") or ("dung hung code snippets"))) or ("locating bug code snippets"))*.