Perhaps you should try some spelling variations:
"trinh vat code snippets" » "trinh van code snippets", "trinh luat code snippets", "sinh vat code snippets", "trinh rate code snippets", "trinh vat co snippets", "trinh vat de snippets"
"dung cac cong snippets" » "luong cac cong snippets", "dung cho cong snippets", "dung tai cong snippets", "dung cua cong snippets"
"locating bug code snippets" » "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 vat code snippets") or ("dung cac cong snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("trinh vat code snippets") OR ("dung cac cong snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( trinh vat code snippets ) or ( dung cac cong snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("trinh vat code snippets") or ("dung cac cong snippets"))) or ("locating bug code snippets"))*.