Perhaps you should try some spelling variations:
"using java code snippets" » "using data code snippets"
"van thuc hinh snippets" » "van thuoc hinh snippets", "van thuc hanh snippets", "van phuc hinh snippets", "va thuc hinh snippets", "dan thuc hinh snippets", "van thu hinh 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 ("van thuc hinh snippets"))) OR ("locating bug core snippets"))~.
• Removing quotes may allow a broader search: (((( using java code snippets ) or ( van thuc hinh snippets ))) or ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("using java code snippets") or ("van thuc hinh snippets"))) or ("locating bug core snippets"))*.