Perhaps you should try some spelling variations:
"trinh mat dan snippets" » "trinh vat dan snippets", "trinh may dan snippets", "trinh mau dan snippets", "trinh hat dan snippets", "trinh luat dan snippets", "trinh mat bang snippets", "trinh mat dan slippers"
"dung bug code snippets" » "dung dung code snippets", "dung hung code snippets", "dung rung code snippets", "dung bug code slippers", "dung bug core snippets"
"locating bug code snippets" » "locating bug code slippers", "locating bug core 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 mat dan snippets") or ("dung bug code snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("trinh mat dan snippets") OR ("dung bug code snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( trinh mat dan snippets ) or ( dung bug code snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("trinh mat dan snippets") or ("dung bug code snippets"))) or ("locating bug code snippets"))*.