Perhaps you should try some spelling variations:
"trinh dung cong snippets" » "trinh dung trong snippets"
"dung duoc dat snippets" » "dong duoc dat snippets", "cung duoc dat snippets", "dung quoc dat snippets", "dung duoc bat snippets", "dung duoc dai snippets", "dung duoc dan snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "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 dung cong snippets") or ("dung duoc dat snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("trinh dung cong snippets") OR ("dung duoc dat snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( trinh dung cong snippets ) or ( dung duoc dat snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("trinh dung cong snippets") or ("dung duoc dat snippets"))) or ("locating bug code snippets"))*.