Perhaps you should try some spelling variations:
networks synthesis » networks systems, nets synthesis
network synthesis » network systems
guidance network » guide network, finance network, impedance network
health incident » health including
death incidence » growth incidence, dengue incidence
health guidance » health evidence, health finance, health substance

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 incident) OR (death incidence)) networks synthesis report ) OR ( health guidance network synthesis report )).
• Adding a wildcard symbol may retrieve word variants: (( ((health incident) or (death incidence)) networks synthesis report ) or ( health guidance network synthesis report ))*.