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