Perhaps you should try some spelling variations:
development integral » development internal, development integrated, development intel
change development » changing development, chinese development, enhance development
communication cost » communication costs, communication costa, communications costs
pt communication » put communication, et communication, post communication
integral action » integrated action, integree actions, integrals function
relation 2.3.1 » relations 6.3.1, relations 2.3.2, relation 3.3.2
technology 1 » technology _
2.3.1 crisis » 2.1 crisis, 2.2.2 crisis, 6.3.2 crisis
cost change » coast changes, must change, fast change
1 relation » 1 relations, _ relation, 5 relation
crisis pt » crisis _, crisis a

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

• Adding a wildcard symbol may retrieve word variants: technology 1 relation 2.3.1 crisis pt communication cost change development integral action.*.