Perhaps you should try some spelling variations:
aggressive disorders » depressive disorders, depressive disorder, recessive disorders
animal's aggressive » anomalous aggressive, animal aggression
impressive disorder » depressive disorder, depressive disorders, depression disorder
mail's aggressive » mail's impressive, male aggressive, various aggressive
build impressive » build immersive, build massive

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: (((( mail's aggressive disorders ) OR ( animal's aggressive disorders ))) OR ( build impressive disorder ))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(((( mail's aggressive disorders ) OR ( animal's aggressive disorders ))) or ( build impressive disorder ))*".