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