Perhaps you should try some spelling variations:
"using java code snippets" » "using data code snippets"
"chuc danh toc snippets" » "chuc nganh toc snippets", "thuc hanh toc snippets", "chuc nang toc snippets", "chuc dan toc snippets", "chuc danh hoc snippets", "chuc danh thuc 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 ("chuc danh toc snippets"))) OR ("locating bug core snippets"))~.
• Removing quotes may allow a broader search: (((( using java code snippets ) or ( chuc danh toc snippets ))) or ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("using java code snippets") or ("chuc danh toc snippets"))) or ("locating bug core snippets"))*.