Because of changes in the ZBX-3413 starting from 1.8.5 we have some "regression".
This feature request is a request to fix this regression.
The regression is appeared because of undocumented feature of use SQL wildcard symbol % inside searched text, which was fixed as bug in the ZBX-3413.

For instance currently it's not possible to search by string "Ch%ory"
for the items wit the descriptions:
"Check cached memory"
"Check free memory"

Suggested to use wildcard symbol *

Related issues ZBX-3979, ZBXNEXT-902