Perhaps you should try some spelling variations:
"using java code snippets" » "using data code snippets"
"locating bug core snippets" » "locating bug code snippets"
"cong de dan snippets" » "cong da dan snippets", "cong ve dan snippets", "cong dieu dan snippets", "cong de dang snippets", "cong de dao snippets", "cong ke dan 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 ("cong de dan snippets"))) OR ("locating bug core snippets"))~.
• Removing quotes may allow a broader search: (((( using java code snippets ) or ( cong de dan snippets ))) or ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("using java code snippets") or ("cong de dan snippets"))) or ("locating bug core snippets"))*.