Perhaps you should try some spelling variations:
"trinh dan code snippets" » "trinh han code snippets", "trinh van code snippets", "trinh san code snippets", "trinh dan de snippets", "trinh dan code slippers"
"dung dung trong snippets" » "duong dung trong snippets", "ung dung trong snippets", "dung ung trong snippets", "dung dung trong 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 dan code snippets") or ("dung dung trong snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("trinh dan code snippets") OR ("dung dung trong snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( trinh dan code snippets ) or ( dung dung trong snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("trinh dan code snippets") or ("dung dung trong snippets"))) or ("locating bug code snippets"))*.