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