Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"cong cua cu snippets" » "cong cu cu snippets", "dong cua cu snippets", "huong cua cu snippets", "cong cua chu snippets", "cong cua su snippets", "cong cua co 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 cua cu 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 cua cu snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cong cua cu snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cong cua cu snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.