Perhaps you should try some spelling variations:
service information » services information, device information, series information
technology service » technology services, technology series, technology overview
zone development » mine development, code development, line development
development l » development li, development 1, development law
l afrique » en afrique
pr a » dr a, r a, p a
pt a » pt 2, pt 1, pt 3

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: "technology service information d820 ((pr a) OR (pt a)) communicative _ zone development l afrique.~".
• Adding a wildcard symbol may retrieve word variants: technology service information d820 ((pr a) OR (pt a)) communicative _ zone development l afrique.*.