Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"using java java snippets" » "using data java snippets"
"19 using raw grippers" » "19 using real grippers", "19 using a grippers", "19 using low grippers", "_ using raw grippers", "ε using raw grippers", "19 using raw slippers"

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("19 using raw grippers") or ("using java java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("19 using raw grippers") OR ("using java java snippets"))) OR ("locating bug core snippets"))*.
• Removing quotes may allow a broader search: (((( 19 using raw grippers ) or ( using java java snippets ))) or ( locating bug core snippets ))*.