Perhaps you should try some spelling variations:
"dung su ham slippers" » "dung su ham slices", "dung cu ham slippers", "dung du ham slippers", "dung so ham slippers", "dung su pham slippers", "dung su hai slippers", "dung su nam slippers"
"python using java snippets" » "python using data 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.

• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung su ham slippers") OR ("python using java snippets"))) OR ("locating bug code snippets"))~.
• Removing quotes may allow a broader search: (((( dung su ham slippers ) or ( python using java snippets ))) or ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("dung su ham slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.