Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"cong cau han slippers" » "cong cu han slippers", "cong chuc han slippers", "thong cau han slippers", "cong cau chan slippers", "cong cau phan slippers", "cong chu han slippers", "cong cau han slippery", "cong cau han grippers"
"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 java java snippets") or ("cong cau han slippers"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung java java snippets") OR ("cong cau han slippers"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung java java snippets ) or ( cong cau han slippers ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung java java snippets") or ("cong cau han slippers"))) or ("locating bug code snippets"))*.