Perhaps you should try some spelling variations:
crisis communication » risk communication, mass communication
communication model » communication media
technology price » technology rich, technology voice, technology service
2.1 development » 3.1 development, 2.3 development, 2.2 development
inflation can » inflation tax, inflation a, inflation co
de crisis » debt crisis, pre crisis, age crisis
model 2.1 » model 2.2, model 1
can de » can do, can code, can deal
asean. » asian.

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

• Adding a wildcard symbol may retrieve word variants: technology price inflation can de crisis communication model 2.1 development china asean.*.