import java.util.regex.Matcher;
import java.util.regex.Pattern;
 
class Ideone {
 
    public static void main(String[] args) {
        String text = "asd oOsdwe ertyu ghjLK Ewesldk";
        String substrings[] = text.split(" ");
        for (String word : substrings) {
            String regex = "[AaOrK]";
            Pattern p = Pattern.compile(regex);
            Matcher m = p.matcher(word);
            boolean res = m.find();
			if (res == false) {
			    System.out.print("       returns: " + word + "  " + res);
			}
        }
    }   
}

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