Perhaps you should try some spelling variations:
networks synthesis » networks systems, nets synthesis
network synthesis » network systems
science networks » science network, sciences network, sequence networks
guidance network » guide network, finance network, guided network
health impedance » health importance, health temperance, head impedance
defence network » defense network, defenses network, defense networks
health guidance » health evidence, health finance, health substance
health science » health sciences
health defence » health adherence, health reference, health terrence
network system » network systems, networked systems
system report » system reform, system support, system recent

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 science networks synthesis report ) OR ( health defence network synthesis report ))) OR ((( health guidance network synthesis report ) OR ( health impedance network system report )))).
• Adding a wildcard symbol may retrieve word variants: (((( health science networks synthesis report ) or ( health defence network synthesis report ))) or ((( health guidance network synthesis report ) or ( health impedance network system report ))))*.