Perhaps you should try some spelling variations:
"cong chat dat slippers" » "cong nhat dat slippers", "cong cua dat slippers", "cong ha dat slippers", "cong chap dat slippers", "cong luat dat slippers", "cong chat va slippers", "cong chat dat slippery", "cong chat dat 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 chat dat 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 chat dat slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cong chat dat slippers ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cong chat dat slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.