Perhaps you should try some spelling variations:
system supporting » systems supporting, system support
network synthesis » network systems
sciences network » services network
guidance network » guide network, finance network, guided network
science network » science networks, science work, sequence networks
dence network » dense network, defence network, dense networks
mode network » model network, models network, core network
health mode » health model, health code, health more

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)))) system supporting ) OR ((( health ((guidance network) OR (impedance network)) synthesis report ) OR ( health mode 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)))) system supporting ) or ((( health ((guidance network) OR (impedance network)) synthesis report ) or ( health mode network synthesis report ))))".
• Adding a wildcard symbol may retrieve word variants: (( health ((dence network) or (((science network) or (sciences network)))) system supporting ) or ((( health ((guidance network) OR (impedance network)) synthesis report ) or ( health mode network synthesis report ))))*.