Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"cong cac phi slippers" » "cuong cac phi slippers", "cong tac phi slippers", "cong cau phi slippers", "cong cac thi slippers", "cong cac khi slippers", "cong cac phi slippery", "cong cac phi 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 cac phi 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 cac phi slippers"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung java java snippets ) or ( cong cac phi slippers ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung java java snippets") or ("cong cac phi slippers"))) or ("locating bug code snippets"))*.