Currently, you can configure the "Implicit wildcard search" as an additional property of a search dialogue. This way, when users search for "Gear," they are actually searching for "Gear*" and can find indexed documents with "Geared motor."
There should be an option to activate this in front of the search term as well. This way, when users search for "motor," the system would search for "*motor*" in the background, and they would also find "Geared motor".
The implicit wildcard search refers to the database driven metadata search - especially in large datasets a front wildcard may lead to high loads and was therfore not offered as default. An alternative way to generally search for terms in values is to configure the descriptors for fulltext indexation and search via fulltext indexed descriptors.