Perhaps you should try some spelling variations:
world communication » work communication, wired communications, good communication
operational costs » operating costs, operational risk
development trade » development trends, development strategy, development towards
3 operational » _ operational
costs preface » codes preface, boxes preface, cover preface
preface world » preface harold
technology 3 » technology _, technology 1, technology 4
costs 2 » costs 20, costs _, costs 4
area. » areas.

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

• Adding a wildcard symbol may retrieve word variants: technology 3 operational costs preface world communication costs 2 development trade area.*.