Customize search pattern for multi-option field

Hi,

I have a field Account type that is a multi-option select field and the options are Grantee, Vendor, Funder, consultants. 

So, the total no of Grantee account is 150, Funder[300], Vendor[200], Consultant[100].

Similarly, few accounts have two type Grantee&Funder [100].

Here, we should have Grantee = 250 (150+100) and Funder = 400.

but, when I filter the record the using query Account type is equal Grantee, it gives me only 150, not 250.

So, is there any way to achieve this. Any help would be appreciated.

Thanks