Perhaps you should try some spelling variations:
"using java java grippers" » "using data java grippers", "using java java slippers"
"vi using low slippery" » "vi sinh low slippery", "_ using low slippery", "vi ung low slippery", "vi using low slippers"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets", "locating bug code slippers"

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

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