Perhaps you should try some spelling variations:
"using java core snippets" » "using data core snippets"
"dun quan lang snippets" » "dun quan hoang snippets", "dun gian lang snippets", "dun quan luan snippets", "dung quan lang snippets", "dan quan lang snippets", "duc quan lang snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code 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 java core snippets") OR ("dun quan lang snippets"))) OR ("locating bug code snippets"))~.
• Removing quotes may allow a broader search: (((( using java core snippets ) or ( dun quan lang snippets ))) or ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("using java core snippets") or ("dun quan lang snippets"))) or ("locating bug code snippets"))*.