Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"doi co anh slippers" » "doi bo anh slippers", "moi co anh slippers", "hoi co anh slippers", "doi cao anh slippers", "doi co hanh slippers", "doi do anh slippers", "doi co anh slippery", "doi co anh 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 co anh slippers") OR ("python using java snippets"))) OR ("locating bug code snippets"))~.
• Removing quotes may allow a broader search: (((( doi co anh slippers ) or ( python using java snippets ))) or ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("doi co anh slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.