c# contains part of string
So I have a list with Materiel-objects. In Materiel I have 15 get and set methods. I want to construct a search-method that loops all the objects in the list, and all of the variables in each Materiel-object. The looping part is easy enough, but I'm struggling with the string-contains-part. The search term could for instance be "acto", and I should get a hit for "Tractor". I have tried using the string-Contains class, but as far as I can figure out, it only checks the string beginning in position 0. So "Tra" gets a hit, but not "acto". Is there any build in classes, or should I program one