Perhaps you should try some spelling variations:
"using java code snippets" » "using data code snippets"
"dan hoc cach snippets" » "dan hoc cac snippets", "dan hoc sach snippets", "dan cuoc cach snippets", "van hoc cach snippets", "dan toc cach snippets", "dai hoc cach 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 ("dan hoc cach snippets"))) OR ("locating bug core snippets"))~.
• Removing quotes may allow a broader search: (((( using java code snippets ) or ( dan hoc cach snippets ))) or ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("using java code snippets") or ("dan hoc cach snippets"))) or ("locating bug core snippets"))*.