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