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