Perhaps you should try some spelling variations:
incidence networks » inference networks, influence networks, science networks
networks synthesis » networks systems, nets synthesis
network synthesis » network systems
health incidence » death incidence, health evidence, path incidence
guidance network » guide network, finance network, impedance network
health incident » health including
networks system » network system, network systems, networked systems
health guidance » health evidence, health finance, health substance
health science » health sciences
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 incidence networks synthesis report ) OR ( ((health science) OR (health incident)) networks system report ))) OR ( health guidance network synthesis report )).
• Adding a wildcard symbol may retrieve word variants: (((( health incidence networks synthesis report ) or ( ((health science) or (health incident)) networks system report ))) or ( health guidance network synthesis report ))*.