The Create SR application is universal i.e. it lists all assets from all sites that you have access to.
The Create SR - Asset lookup will also not show you decommissioned assets. So, when you went into the Assets application and got 9945 assets, that is all the assets with the default insert site, assuming that you have set that as your "Use Default Insert Site as a Display Filter?" from your user profile.
Do you have access to multiple sites?
Otherwise as Vivek pointed out that there may be some data restriction going on.