Perhaps you should try some spelling variations:
technology 10.4.4 » technology 1.4.4, technology 10.2.1, technology 1.2.4
10.4.4 relations » 1.4.4 relation, 1.4 relations, 2.4.5 relations
development case » development china
der hydropower » dam hydropower, river hydropower, power hydropower
relations 2.2 » relations 2.1, relations 3.2, relations 1.2
community der » community dr, community aec, community das
2.2 value » 4.2 value, 2.3 value, 3.3 value
case one » phase one

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

• Adding a wildcard symbol may retrieve word variants: technology 10.4.4 relations 2.2 value through community der hydropower development case one.*.