Perhaps you should try some spelling variations:
"dung trinh java snippets" » "dung tinh java snippets", "dong trinh java snippets", "cong trinh java snippets", "dung trinh java slippers"
"dung tran nhat snippets" » "dung tren nhat snippets", "hung tran nhat snippets", "dang tran nhat snippets", "dung toan nha snippets", "dung tran chau snippets", "dung tran nhat slippers"
"locating bug code snippets" » "locating bug code slippers", "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: (((("dung tran nhat snippets") or ("dung trinh java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung tran nhat snippets") OR ("dung trinh java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung tran nhat snippets ) or ( dung trinh java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung tran nhat snippets") or ("dung trinh java snippets"))) or ("locating bug code snippets"))*.