Perhaps you should try some spelling variations:
"dung hung code snippets" » "dung chung code snippets", "dung nhung code snippets", "dung huong code snippets", "dung hung code slippers"
"trinh mo viet snippets" » "trinh do viet snippets", "trinh co viet snippets", "trinh hoa viet snippets", "trinh mon viet snippets", "trinh so viet snippets", "trinh o viet snippets", "trinh mo viet 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 mo viet 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 mo viet snippets") OR ("dung hung code snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( trinh mo viet snippets ) or ( dung hung code snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("trinh mo viet snippets") or ("dung hung code snippets"))) or ("locating bug code snippets"))*.