Perhaps you should try some spelling variations:
"using java code snippets" » "using data code snippets"
"dan cua sinh snippets" » "dan cho sinh snippets", "dan hoa sinh snippets", "dan va sinh snippets", "dan ca sinh snippets", "ban cua sinh snippets", "dai cua sinh 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 ("dan cua sinh snippets"))) OR ("locating bug core snippets"))~.
• Removing quotes may allow a broader search: (((( using java code snippets ) or ( dan cua sinh snippets ))) or ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("using java code snippets") or ("dan cua sinh snippets"))) or ("locating bug core snippets"))*.