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