Perhaps you should try some spelling variations:
"trinh cham nen snippets" » "trinh chat nen snippets", "trinh chao nen snippets", "trinh han nen snippets", "trinh cham den snippets", "trinh cham nhin snippets", "trinh cham ninh snippets", "trinh cham nen slippers"
"dung trong code snippets" » "dung trong cong snippets", "dung trong co snippets", "dung trong che snippets", "dung trong 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 cham nen snippets") or ("dung trong code snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("trinh cham nen snippets") OR ("dung trong code snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( trinh cham nen snippets ) or ( dung trong code snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("trinh cham nen snippets") or ("dung trong code snippets"))) or ("locating bug code snippets"))*.