Perhaps you should try some spelling variations:
personal communication » interpersonal communication
trade developments » trade development, rate developments, price developments
developments de » developpements de, developments web, developments _
des variation » does variation, de variation, der variation
der personal » der personalen, der personen, der person
costs trade » costly trade
typologie » typologies, typology

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

• Adding a wildcard symbol may retrieve word variants: typologie des variation _ der personal communication costs trade developments de l'afrique.*.