Perhaps you should try some spelling variations:
networks synthesis » network synthesis, networks systems, nets synthesis
health financial » health financing, health finance, real financial
health device » health service, health services
system report » system reform, system reforms, system recent
guide network » guided network, side network, inside network
health dence » health evidence, health science, health devices
wide network » side network, mode network, line 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) OR (health device)) network ((system report) OR (system support)) ) OR ((( health ((guide network) OR (wide network)) synthesis report ) OR ( health financial networks synthesis report )))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( ((health dence) or (health device)) network ((system report) or (system support)) ) or ((( health ((guide network) OR (wide network)) synthesis report ) or ( health financial networks synthesis report ))))".
• Adding a wildcard symbol may retrieve word variants: (( ((health dence) or (health device)) network ((system report) or (system support)) ) or ((( health ((guide network) OR (wide network)) synthesis report ) or ( health financial networks synthesis report ))))*.