Perhaps you should try some spelling variations:
"python using java slippery" » "python using data slippery"
"de na zhang slippers" » "de nam thang slippers", "de tao zhang slippers", "de yan zhang slippers", "de la zhang slippers", "de va zhang slippers", "de ma zhang slippers", "de na zhang 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: (((("de na zhang slippers") OR ("python using java slippery"))) OR ("locating bug code snippets"))~.
• Removing quotes may allow a broader search: (((( de na zhang slippers ) or ( python using java slippery ))) or ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("de na zhang slippers") or ("python using java slippery"))) or ("locating bug code snippets"))*.