Perhaps you should try some spelling variations:
"using java code snippets" » "using data code snippets", "using java core snippets"
"dot tuong hoc snippets" » "doi tuong hoc snippets", "dot trong hoc snippets", "mot tuong hoc snippets", "dot truong hoc snippets", "dot tuong ho snippets", "dot duong hoc snippets"
"locating bug code snippets" » "locating bug core snippets", "locating bung code snippets", "locating bugs 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 ("dot tuong hoc snippets"))) OR ("locating bug code snippets"))~.
• Removing quotes may allow a broader search: (((( using java code snippets ) or ( dot tuong hoc snippets ))) or ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("using java code snippets") or ("dot tuong hoc snippets"))) or ("locating bug code snippets"))*.