Perhaps you should try some spelling variations:
"trinh phat dan snippets" » "trinh phan dan snippets", "trinh chat dan snippets", "trinh phap dan snippets", "trinh hat dan snippets", "trinh phan dang snippets", "trinh pham dang snippets", "trinh phat dan 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 phat dan 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 phat dan snippets") OR ("dung trong code snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( trinh phat dan snippets ) or ( dung trong code snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("trinh phat dan snippets") or ("dung trong code snippets"))) or ("locating bug code snippets"))*.