Perhaps you should try some spelling variations:
oral communication » personal communication
communication pt » communication 3, communication 1, communication 2
developpement la » developpement de, developpement et, developpement du
3 developpement » de developpement, le developpement, et developpement
la afrique » l afrique, la fabrique, en afrique
4.1 firms » 3.1 firms, 4.1 forms, 2.14 firms
4 firms » 4.5 firms, 4.6 firms, 4.8 firms
pt 3 » pt 2, pt 1

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "typology _ variations ((4 firms) OR (4.1 firms)) oral communication pt 3 developpement la afrique.~".
• Adding a wildcard symbol may retrieve word variants: typology _ variations ((4 firms) OR (4.1 firms)) oral communication pt 3 developpement la afrique.*.