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