import java.util.regex.Pattern;

public class Test {

    public static void main(String[] args) {
        String[] strs = {
                "asdf,我们,你们,他们",
                "我们,asdf,你们,他们",
                "我们,你们,他们,asdf",
                "你们,他们, 我们,asdf",
                "你们,他们, 我,asdf"
            };
        Pattern pattern = Pattern.compile("(?=.*你们)(?=.*我们)(?=.*他们).*");
        for (String str : strs) {
            System.out.printf("%s: %s%n", str, pattern.matcher(str).matches());
        }
    }
}