hi i would like to ask as i need a help

i was working in qatar for 8 months then i resigned and left qatar, my contrat was for 2 years and i did only 8 months, now i am 1 year and 8 months out of qatar, i want to go back coz i got job, i wanna know if i need 2 years out of doha or less, coz i have heard if u are 20 months of qatar , u can come back, so please helpppppppppp
thanks in advance