Perhaps you should try some spelling variations:
"dung cong java snippets" » "dung trong java snippets", "dung cong va snippets"
"dung chao chao snippets" » "dung cho chao snippets", "dung chat chao snippets", "dung chau chao snippets", "dung cao chat snippets", "dung cao cho snippets", "dung chat cho 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: (((("dung cong java snippets") or ("dung chao chao snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung cong java snippets") OR ("dung chao chao snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung cong java snippets ) or ( dung chao chao snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung cong java snippets") or ("dung chao chao snippets"))) or ("locating bug code snippets"))*.