Perhaps you should try some spelling variations:
development policies » development policy, development projects
communication from » communication 3, communication 1, communication 3.3
series validation » versus validation, cross validation, scale validation
de communication » mobile communication, online communication
validation 1 » validation 12, validation _, validation 4
from sector » from sectoral, from reactor, farm sector
place de » place _
1 place » _ place, a place, en place

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

• Adding a wildcard symbol may retrieve word variants: technology series validation 1 place de communication from sector development policies _.*.