Newer house with foundation problem

[Jaimie Chen]

I found a house that is in my range, but with some problems I am not sure if I should walk away.  This brick house is less than 10 years old, sits on higher ground and with no big trees near the house, this house also has sprinkler system installed.

However, the house had foundation problem.  Foundation repaired work has been done. There are 4 inside concrete piers and unknown number of exterior piers installed around 2 and half sides of house.  Numerous cracks can be seen on corner, ceilings, drywall, and door frames. Exterior looks great, only few minor issues.  I did not pay attention on details. 

Could this be a sign bad of foundation slab or structure problems for the house that new?