Question

تا اینجا روابطی بین a,b,c,d و روابطی بین f,g,h,j پیدا شد

Answer 1

So far it has been found that there exist some sort of relations between a, b, c, and d and also between f, g, h, and j.

So far a relation has been found between a, b, c, and d and also between f, g, h, and j.

Answer 2

some relations are found between a, b, c and d and also between f, g, h and j

till now/so far/till here.

of course if you are writing for a paper.

remember it should be passive.