Perhaps you should try some spelling variations:
"dong wang zhang slippers" » "dong yang zhang slippers", "dong wang zhong slippers", "dong xiang zhang slippers", "dong bang zhang slippers", "cong wang zhang slippers", "dong nang zhang slippers", "dong wang zhang slippery", "dong wang zhang 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: (((("dong wang zhang slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dong wang zhang slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dong wang zhang slippers ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dong wang zhang slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.