Perhaps you should try some spelling variations:
"dung lich han slippers" » "dung dich han slippers", "cuong lich han slippers", "luong lich han slippers", "dung lich can slippers", "dung lich thai slippers", "dung lich han slippery", "dung lich han 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 lich han 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 lich han slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung lich han slippers ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung lich han slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.