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