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