Perhaps you should try some spelling variations:
"dung cac code snippets" » "dung cac cong snippets", "dung cac co snippets", "dung cac che snippets", "luong cac code snippets", "dung cho code snippets", "dung tai code snippets", "dung cac code slippers"
"luan chi java snippets" » "quan chi java snippets", "lan chi java snippets", "luan chi java 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: (((("luan chi java snippets") or ("dung cac code snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("luan chi java snippets") OR ("dung cac code snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( luan chi java snippets ) or ( dung cac code snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("luan chi java snippets") or ("dung cac code snippets"))) or ("locating bug code snippets"))*.