Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"using real java snippets" » "using metal java snippets", "using raw java snippets"
"vi ung java grippers" » "vi using java grippers", "vi ngu java grippers", "vi ung va grippers", "va ung java grippers", "vi luong java grippers", "vi trung java grippers", "vi ung java slippers"

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

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