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