Searching by IPC in the "Field Combination" gives different no. of hits when searching C02F1/00 as opposed to C02F 1/00 (notice the space).
Thanks!
Gershon
This is a bug which is going to be fixed by the end of month.
Currently, the correct results are given by querying 'C02F 1/00'
Thank you for letting us know.
Iustin