POS search on multiple keywords

Hi,

I have the following scenario. I was able to add attributes to my products and see them in my POS. Now I can search on them BUT lets take the following scenario

Attribute 1 value A -> 500 products

Attribute 2 value B -> 400 products 

Let's assume that there are 50 products that have A and B

Now I want to find those 50 products

In the product search I can enter A and then I get my 500 products, If I enter B I get the 400, but how can I search for the products that have A and B.

I tried +, comma, AND,... 

I'm trying this in AX2012 R3, but If this is possible in AX7 and not in 2012 then I would also be fine with it.

Or it this not possible, then I find this a big shortage in the POS :)