Perhaps you should try some spelling variations:
eu communication » ec communication, et communication, de communication
development act » development a, development aid, development age
relation 2.3.1 » relations 6.3.1, relations 2.3.2, relation 3.3.2
20 development » 2 development, 2015 development, 2007 development
technology la » technology law, technology lag, technology land
2.3.1 crisis » 2.1 crisis, 2.2.2 crisis, 6.3.2 crisis
la relation » la revolution, a relational
act aortic » acute aortic, after aortic
crisis eu » crisis el, crises eu, crisis en
costs 20 » costs 60, costs 2.3, costs 2.1

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

• Adding a wildcard symbol may retrieve word variants: technology la relation 2.3.1 crisis eu communication costs 20 development act aortic.*.