Perhaps you should try some spelling variations:
"using java code snippets" » "using data code snippets"
"tan trinh cam snippets" » "tan thinh cam snippets", "tao trinh cam snippets", "dan trinh cam snippets", "tan trinh cham snippets", "tan trinh cau snippets", "tan trinh tam 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 ("tan trinh cam snippets"))) OR ("locating bug core snippets"))~.
• Removing quotes may allow a broader search: (((( using java code snippets ) or ( tan trinh cam snippets ))) or ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("using java code snippets") or ("tan trinh cam snippets"))) or ("locating bug core snippets"))*.