Perhaps you should try some spelling variations:
guinean communications » guinea communications, guiana communications, business communications
education series » education services, educational services, education systems
et developpement » de developpement, le developpement, test development
developpement en » developpement et, developpement des, developpement de
typologie 2000 » typologie 10.4
2000 education » 2015 education, 2 education, 2000 edition
a guinean » _ guinea, _ quinean
series a » series _, series 1, series 2

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

• Adding a wildcard symbol may retrieve word variants: typologie 2000 education series a guinean communications _ et developpement en afrique.*.