Perhaps you should try some spelling variations:
"tran nhan ha snippets" » "tran nhat ha snippets", "tan nhan ha snippets", "tran han ha snippets", "tran nhanh ha snippets", "tran nhan hoa snippets", "tran nhan va snippets", "tran nhan ha slippers"
"dung java java snippets" » "dung va java snippets", "dung java java 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: (((("tran nhan ha snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tran nhan ha snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tran nhan ha snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tran nhan ha snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.