Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"doi ca may slippers" » "doi cua may slippers", "doi cay may slippers", "duoi ca may slippers", "doi cat may slippers", "doi cau may slippers", "doi co may slippers", "doi ca may slippery", "doi ca may 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 ca may slippers") OR ("python using java snippets"))) OR ("locating bug code snippets"))~.
• Removing quotes may allow a broader search: (((( doi ca may slippers ) or ( python using java snippets ))) or ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("doi ca may slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.