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