Perhaps you should try some spelling variations:
"thoan tran java snippets" » "hoan tran java snippets", "toan tran java snippets", "tan tran java snippets", "thoan trinh java snippets", "thoan tran java slippers"
"dung vung code snippets" » "dung ung code snippets", "dung dung code snippets", "dung hung code snippets", "dung vung co snippets", "dung vung 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: (((("thoan tran java snippets") or ("dung vung code snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("thoan tran java snippets") OR ("dung vung code snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thoan tran java snippets ) or ( dung vung code snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thoan tran java snippets") or ("dung vung code snippets"))) or ("locating bug code snippets"))*.