Perhaps you should try some spelling variations:
"dung bai trong slippers" » "dung bi trong slippers", "dung tai trong slippers", "dung bui trong slippers", "dung sai trong slippers", "dung hai trong slippers", "dung bai trong slippery", "dung bai 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 bai 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 bai trong slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung bai trong slippers ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung bai trong slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.