Perhaps you should try some spelling variations:
"using java code snippets" » "using data code snippets"
"locating bug core snippets" » "locating bug code snippets"
"doi hoi dan snippets" » "doi thoi dan snippets", "doi voi dan snippets", "doi moi dan snippets", "doi hoa dan snippets", "doi hoc dan snippets", "doi hoi dap 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 code snippets") OR ("doi hoi dan snippets"))) OR ("locating bug core snippets"))~.
• Removing quotes may allow a broader search: (((( using java code snippets ) or ( doi hoi dan snippets ))) or ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("using java code snippets") or ("doi hoi dan snippets"))) or ("locating bug core snippets"))*.