Perhaps you should try some spelling variations:
del communication » cell communication, real communication, cell communications
technology cost » technology case, technology can, technology choice
cost reduction » risk reduction, debt reduction
costs software » tools software, code software, roads software
reduction 1.1 » reduction 3.1, reduction 5.1, reduction 1.2
1.1 crisis » 11 crisis, 2.1 crisis, 3.1 crisis
crisis del » crisis desde

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

• Adding a wildcard symbol may retrieve word variants: technology cost reduction 1.1 crisis del communication costs software development _ aortic.*.