Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"doi cap han slippers" » "doi ca han slippers", "doi cay han slippers", "doi dap han slippers", "doi cap phan slippers", "doi cap can slippers", "doi cap hay slippers", "doi cap han slippery", "doi cap han grippers"
"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: (((("doi cap han slippers") OR ("python using java snippets"))) OR ("locating bug code snippets"))~.
• Removing quotes may allow a broader search: (((( doi cap han slippers ) or ( python using java snippets ))) or ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("doi cap han slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.