Perhaps you should try some spelling variations:
"dung tung dan slippers" » "dung trung dan slippers", "dung ung dan slippers", "dang tung dan slippers", "dung dung dan slippers", "dung huong dan slippers", "dung trung dai slippers", "dung tung dan slippery", "dung tung dan 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 tung dan 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 tung dan slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung tung dan slippers ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung tung dan slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.