Perhaps you should try some spelling variations:
3.3 communication » 2.3 communication, 3.2 communication, 3.5 communication
technology trade » technology trends, technology transfer, technology transfers
de developpement » sme development
developpement de » developpement des, developpement durable
trade sanctions » trade transactions
sanctions wage » sanctions case, sanctions cause, sanctions a
efforts de » efforts do, efforts dean, efforts _
de afrique » de l'afrique, en afrique, l afrique
wage rate » wage rates
rate 3.3 » rates 3.3, rate 4.3, rate 6.3

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

• Adding a wildcard symbol may retrieve word variants: technology trade sanctions wage rate 3.3 communication efforts de developpement de afrique.*.