Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java slippery" » "python using data slippery", "python using java slippers"
"web vi trac grippers" » "web va trac grippers", "web li trac grippers", "web hoi trac grippers", "web voi trac grippers", "web vi trac slippers"

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("python using java slippery") or ("web vi trac grippers"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using java slippery") OR ("web vi trac grippers"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( python using java slippery ) or ( web vi trac grippers ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using java slippery") or ("web vi trac grippers"))) or ("locating bug core snippets"))*.