Help with Visa

[Nocelox]

I have currently I'm working in the Northwest Territories with a work permit, come to canada in April with a single entry visa, I would like to go on vacation to my country, I think as my visa is for a single authorization, when returning from vacation could not get into canada and continue with my work? I ask for a multiple entry visa to go on holiday and so to re enter canada without any problems? dijieran I would appreciate that steps or I should do for my turn to enter canada should not have any problems? thank you very much