Perhaps you should try some spelling variations:
"trinh dung duan snippets" » "trinh dung luan snippets", "trinh dung quan snippets", "trinh dung dan snippets", "trinh dung duan slippers"
"ung dung code snippets" » "ung dung cong snippets", "ung dung co snippets", "ung dung de snippets", "ung dung 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 dung duan snippets") or ("ung dung code snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("trinh dung duan snippets") OR ("ung dung code snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( trinh dung duan snippets ) or ( ung dung code snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("trinh dung duan snippets") or ("ung dung code snippets"))) or ("locating bug code snippets"))*.