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