Perhaps you should try some spelling variations:
"using java can snippets" » "using data can snippets"
"doi cong tac snippets" » "doi song tac snippets", "noi cong tac snippets", "moi cong tac snippets", "doi cong ty snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core 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 can snippets") OR ("doi cong tac snippets"))) OR ("locating bug code snippets"))~.
• Removing quotes may allow a broader search: (((( using java can snippets ) or ( doi cong tac snippets ))) or ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("using java can snippets") or ("doi cong tac snippets"))) or ("locating bug code snippets"))*.