Perhaps you should try some spelling variations:
"dung dat tranh slippers" » "dung dat thanh slippers", "dung dau tranh slippers", "dung dat khanh slippers", "dung va tranh slippers", "dung tai tranh slippers", "dung dat tranh slippery", "dung dat tranh 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 dat tranh 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 dat tranh slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung dat tranh slippers ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung dat tranh slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.