Is it possible to have such trial limitations in a single application: 10 executions and 30 days? What we have in such configuration - application became expired after its first execution.

Sure, you can combine both of them (and many other trial restrictions)

Notice that if for example you have protected your application with "Trial Executions" and later you protect your application with "Trial Executions" + "Trial days", your trial will become expired/corrupted. That is because your current "Trial Unique Key" (in Software panel) in your application has been installed in the target machine to run only with Trial Executions, so, if you later re-protect with Trial Executions + Trial Days, you get trial corruption.

In order to solve that, you have to change your "Trial Unique Key" and reprotect again your application. So, you will have your protected application being able to expire in executions and/or days.