Perhaps you should try some spelling variations:
"using nhat nheo slippers" » "using sat nheo slippers", "using nhat theo slippers", "using nhan nho slippers", "using hat cheo slippers", "using nhat nheo slippery", "using nhat nheo 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: (((("using nhat nheo slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("using nhat nheo slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( using nhat nheo slippers ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("using nhat nheo slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.