Perhaps you should try some spelling variations:
"using java code snippets" » "using data code snippets"
"han viet cham snippets" » "han viet nam snippets", "han viet ha snippets", "han viet phan snippets", "san viet cham snippets", "van viet cham snippets", "dan viet cham 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 ("han viet cham snippets"))) OR ("locating bug core snippets"))~.
• Removing quotes may allow a broader search: (((( using java code snippets ) or ( han viet cham snippets ))) or ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("using java code snippets") or ("han viet cham snippets"))) or ("locating bug core snippets"))*.