Perhaps you should try some spelling variations:
"trinh may dan snippets" » "trinh ky dan snippets", "trinh han dan snippets", "trinh ly dan snippets", "trinh may san snippets", "trinh cay dan snippets", "trinh mat dan snippets", "trinh may 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 may 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 may dan snippets") OR ("dung bug code snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( trinh may dan snippets ) or ( dung bug code snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("trinh may dan snippets") or ("dung bug code snippets"))) or ("locating bug code snippets"))*.