Perhaps you should try some spelling variations:
"trinh anh tran snippets" » "trinh hanh tran snippets", "trinh thanh tran snippets", "trinh kinh tran snippets", "trinh anh tuan snippets", "trinh anh toan snippets", "trinh anh trac snippets", "trinh anh tran slippers"
"dung cong code snippets" » "dung trong code snippets", "dung cong cong snippets", "dung cong co snippets", "dung cong che snippets", "dung cong 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 anh tran snippets") or ("dung cong code snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("trinh anh tran snippets") OR ("dung cong code snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( trinh anh tran snippets ) or ( dung cong code snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("trinh anh tran snippets") or ("dung cong code snippets"))) or ("locating bug code snippets"))*.