I specifically checked that. I was told that I can go for interview and do job - test on the premises. But if I get an offer, I have leave the country and come

I specifically checked that. I was told that I can go for interview and do job - test on the premises. But if I get an offer, I have leave the country and come in the work visa to work. I can only "LOOK" for a job. Not "DO" a job.