Perhaps you should try some spelling variations:
"dong doanh thin slippers" » "dong danh thin slippers", "dong doanh thanh slippers", "dong doanh chien slippers", "dung doanh thin slippers", "trong doanh thin slippers", "doanh doanh thin slippers", "dong doanh thin slippery", "dong doanh thin 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"

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("dung java java snippets") or ("dong doanh thin slippers"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung java java snippets") OR ("dong doanh thin slippers"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung java java snippets ) or ( dong doanh thin slippers ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung java java snippets") or ("dong doanh thin slippers"))) or ("locating bug code snippets"))*.