Perhaps you should try some spelling variations:
parents integration » markets integration, parent interaction, payment integration
technology parents » technology parks, technology trends, technology arena
integration wage » integration wege, integration wie, integration work
developpement en » developpement et, developpement des, developpement de
1 communication » 10 communication, 3 communication, 4 communication
4 developpement » de developpement, le developpement, et developpement
wage gaps » wage gap
costs 4 » costs _, costs a, costs 4.2
gaps 1 » gaps _, maps 1, gaps 3

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

• Adding a wildcard symbol may retrieve word variants: technology parents integration wage gaps 1 communication costs 4 developpement en afrique.*.