Perhaps you should try some spelling variations:
"using java code snippets" » "using data code snippets", "using java core snippets", "using java code slippers"
"dan viet ngoc snippets" » "dan viet goc snippets", "dan viet ngu snippets", "dan diem ngoc snippets", "danh viet ngoc snippets", "san viet ngoc snippets", "dao viet ngoc snippets", "dan viet ngoc slippers"
"locating bug code snippets" » "locating bug core snippets", "locating bug code slippers", "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 ("dan viet ngoc snippets"))) OR ("locating bug code snippets"))~.
• Removing quotes may allow a broader search: (((( using java code snippets ) or ( dan viet ngoc snippets ))) or ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("using java code snippets") or ("dan viet ngoc snippets"))) or ("locating bug code snippets"))*.