Perhaps you should try some spelling variations:
"dan dong tranh slippers" » "dan dong thanh slippers", "dan dong trinh slippers", "dan trong tranh slippers", "van dong tranh slippers", "dan dung tranh slippers", "dao dong tranh slippers", "dan dong tranh slippery", "dan dong 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: (((("dan dong 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: (((("dan dong tranh slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dan dong tranh slippers ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dan dong tranh slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.