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 luong tai snippets" » "vi dung tai snippets", "vi luong va snippets", "dai luong tai snippets", "van luong tai snippets", "hai luong tai 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: (((("using real java snippets") OR ("vi luong tai snippets"))) OR ("locating bug core snippets"))~.
• Removing quotes may allow a broader search: (((( using real java snippets ) or ( vi luong tai snippets ))) or ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("using real java snippets") or ("vi luong tai snippets"))) or ("locating bug core snippets"))*.