Perhaps you should try some spelling variations:
"tran trinh java snippets" » "trang trinh java snippets", "tra trinh java snippets", "thanh trinh java snippets"
"dung cac chat snippets" » "luong cac chat snippets", "dung cho chat snippets", "dung tai chat snippets", "dung cao chat snippets", "dung cac thuat snippets", "dung cac nha 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: (((("tran trinh java snippets") or ("dung cac chat snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tran trinh java snippets") OR ("dung cac chat snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tran trinh java snippets ) or ( dung cac chat snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tran trinh java snippets") or ("dung cac chat snippets"))) or ("locating bug code snippets"))*.