Perhaps you should try some spelling variations:
communications time » communications type, communications chile, communications price
time development » sme development, mine development, site development
information 1.2 » information 1.5.2, information 2
technologies 2 » technologies _, technologies 4
development do » development doi, development d, development ds
do african » two african, _ african, 1 african
time time » same time, life time
rq 1 » rq 2
r 1 » nr 1, ar 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: "technologies 2 information 1.2 ((r 1) OR (rq 1)) communications time time development do african.~".
• Adding a wildcard symbol may retrieve word variants: technologies 2 information 1.2 ((r 1) OR (rq 1)) communications time time development do african.*.