Perhaps you should try some spelling variations:
"using java code snippets" » "using data code snippets"
"toc toan trac snippets" » "toc toan tran snippets", "toc thoan tran snippets", "toc toan tap snippets", "ngoc toan trac snippets", "quoc toan trac snippets", "tich toan trac snippets"
"locating bug core snippets" » "locating bug 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 code snippets") OR ("toc toan trac snippets"))) OR ("locating bug core snippets"))~.
• Removing quotes may allow a broader search: (((( using java code snippets ) or ( toc toan trac snippets ))) or ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("using java code snippets") or ("toc toan trac snippets"))) or ("locating bug core snippets"))*.