Perhaps you should try some spelling variations:
network synthesis » network systems
sciences network » services network
science network » science networks, science work, sequence networks
systems support » system support, systems supporting, system supporting
dence network » dense network, defence network, dense networks
guide network » guided network, side network, inside network
health guide » health guido, earth guide, health grid
wide network » side network, mode network, node network
fine network » line network, line networks, gene network

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

• If you are trying to use Boolean operators, they must be ALL CAPS: (( health ((dence network) OR (((science network) OR (sciences network)))) systems support ) OR ((( health guide network synthesis report ) OR ( health ((wide network) OR (fine network)) synthesis report )))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( health ((dence network) or (((science network) or (sciences network)))) systems support ) or ((( health guide network synthesis report ) or ( health ((wide network) OR (fine network)) synthesis report ))))".
• Adding a wildcard symbol may retrieve word variants: (( health ((dence network) or (((science network) or (sciences network)))) systems support ) or ((( health guide network synthesis report ) or ( health ((wide network) OR (fine network)) synthesis report ))))*.