Perhaps you should try some spelling variations:
"dang bai robot slippers" » "dang tao robot slippers", "dang a robot slippers", "dang tay robot slippers", "dung bai robot slippers", "dang hai robot slippers", "dang ba robot slippers", "dang bai robot slippery", "dang bai robot 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: (((("dang bai robot slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dang bai robot slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dang bai robot slippers ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dang bai robot slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.