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