[double az]

If I search for 1987 topps baseball box:

1. If I am in the baseball only price guide, no results are returned. This holds true for 1989 baseball donruss box, 1991 upper deck baseball box, etc. No results with just box either.
2. If I search in the all catergories price guide with any of the options above, the search returns results for these rack boxes, hobby boxes, wax pack box, etc. However, when I select add to organize, these never show in my collections.

Questions:
1. Why does the search not return results if I am in the baseball price guide but will return results in the main priced guide search?
2. Why from the main price guide search can I not add these boxes to my collection?

Any help would be appreciated.

Thanks.