Perhaps you should try some spelling variations:
"cong chung java slippers" » "cong hung java slippers", "cong thuong java slippers", "cong cong java slippers", "cong chung java slippery", "cong chung java grippers"
"dang java java snippets" » "dang 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: (((("dang java java snippets") or ("cong chung java slippers"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dang java java snippets") OR ("cong chung java slippers"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dang java java snippets ) or ( cong chung java slippers ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dang java java snippets") or ("cong chung java slippers"))) or ("locating bug code snippets"))*.