Search Operators

Looking for some help.
In the past I've used this.
prd: + 3pd: to bring back all all physical product and 3dpart types however today this doesn't seem to work any more.
The following does work.
name: sprd-0006*

However the concatenation doesn't and I'm almost certain I've used this in the past as well.
name: sprd-0006* OR name: prd-0006*
Just curious if its my platform or if everyone has the same issue.