Perhaps you should try some spelling variations:
networks synthesis » nets synthesis
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 » 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 synthesis report ) OR ( ((health incidence) OR (death incidence)) networks systems report ))) OR ( health guidance network synthesis report )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(((( ((health incidence) OR (death incidence)) networks synthesis report ) or ( ((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 synthesis report ) or ( ((health incidence) OR (death incidence)) networks systems report ))) or ( health guidance network synthesis report ))*.