Perhaps you should try some spelling variations:
sector developments » sector development, recent developments
communication cost » communication costs, communication costa, communications costs
developments acute » developments after, developments alter, development act
el communication » cell communication, real communication, 3 communication
relations 2.4 » relations 2.1, relations 2.5, relations 3.4
technology 1 » technology _
acute aortic » after aortic
1 relations » 3 relations, a relations, 1.2 relations
cost sector » cost vector, port sector, forest sector
2.4 crisis » 2.1 crisis, 2.2 crisis, 2.5 crisis
crisis el » crisis _, crisis a, crisis 1

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

• Adding a wildcard symbol may retrieve word variants: technology 1 relations 2.4 crisis el communication cost sector developments acute aortic.*.