Modules & VBA :: Update SQL With Multiple Where Clause

I have an update sql statement that isn't quite working properly.

My where clause has 3 criteria.
*print = -1
*stDocCriteria (project_num and client_id)

Below is what the code looks like.

Code:
updateSQL = "update tblTimedTasks set printed =-1, invoice_date = Now() where print = -1 and " & stDocCriteria

Add watch: so you guys can see "stDocCriteria"

Code:
updateSQL = "update tblTimedTasks set printed =-1, invoice_date = Now() where print =-1 and ([project_num]= '140012' And [client_id] = 87)"

I want to only updates records that meet all three criteria. The above sql not only updates all records that satisfy stDocCriteria regardless if print is -1(true) or 0(false).