Perhaps you should try some spelling variations:
crisis communication » risk communication, mass communication
model developments » model development, modern developments, code developments
communication 4.1 » communication 4.3, communication 7.1, communication 1
technologies 2 » technologies _, technologies 4
information 2 » information 3
fire crisis » fires crisis, first crisis, pre crisis
4.1 model » 3.1 model, 2.1 model
2 fire » 25 fire, i2 fire, _ fire

You may be able to get more results by adjusting your search query.

• Adding a wildcard symbol may retrieve word variants: technologies 2 information 2 fire crisis communication 4.1 model developments _ afrique.*.