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