Perhaps you should try some spelling variations:
"using java code snippets" » "using data code snippets"
"locating bug core snippets" » "locating bug code snippets"
"duc cac tao snippets" » "duoc cac tao snippets", "tuc cac tao snippets", "muc cac tao snippets", "duc cau tao snippets", "duc cac tro snippets", "duc cac tac 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 ("duc cac tao snippets"))) OR ("locating bug core snippets"))~.
• Removing quotes may allow a broader search: (((( using java code snippets ) or ( duc cac tao snippets ))) or ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("using java code snippets") or ("duc cac tao snippets"))) or ("locating bug core snippets"))*.