Perhaps you should try some spelling variations:
implications 6.1 » applications 6.1, implications _, implications 5
competition cost » competition case, competition co, competition foster
development case » development china
cost hydropower » less hydropower, non hydropower, note hydropower
technology 4 » technology _, technology 1, technology 3
goes through » goals through, homes through, nodes through
6.1 goes » 6.1 goals, 6.1 gaps, 6.1 goal
case art » case part, case heart, case start

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

• Adding a wildcard symbol may retrieve word variants: technology 4 implications 6.1 goes through competition cost hydropower development case art.*.