Perhaps you should try some spelling variations:
complications from » implications from, applications from, complications _
coal development » local development, moral development, oil development
technologies de » technologies _, technologies 4, technologies 2
6 complications » _ complications, c complications, 4.6 complications
de integration » die integration, re integration, une integration
goes 6 » goes _, goes 4, goes a

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

• Adding a wildcard symbol may retrieve word variants: technologies de integration _ goes 6 complications from coal development policy a.*.