Perhaps you should try some spelling variations:
network synthesis » network systems
networked systems » network systems
networks systems » network systems, networks system, network system
guidance network » guide network, finance network, impedance network
health incident » health including
health guidance » health evidence, health finance, health substance
path incidence » death incidence, health incidence, high incidence
dence network » dense network, defence network, dense networks
health dence » health device, health evidence, health science

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 synthesis report ) OR ( ((path incidence) OR (health incident)) ((networks systems) OR (networked systems)) report ))) OR ( health guidance network synthesis report )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(((( health dence network synthesis report ) or ( ((path incidence) or (health incident)) ((networks systems) OR (networked systems)) report ))) or ( health guidance network synthesis report ))".
• Adding a wildcard symbol may retrieve word variants: (((( health dence network synthesis report ) or ( ((path incidence) or (health incident)) ((networks systems) OR (networked systems)) report ))) or ( health guidance network synthesis report ))*.