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