Perhaps you should try some spelling variations:
network synthesis » network systems
health incidence » health science, health evidence, path incidence
health incident » health including
death incidence » growth incidence, dengue incidence
nets synthesis » net synthesis, dots synthesis, agents synthesis
its synthesis » dots synthesis, its synthetic, agents synthesis
guide network » guided network, side network, wide network
health guide » health guido, earth guide, health grid

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 (health incident))) OR (death incidence)) ((nets synthesis) OR (its synthesis)) report ) OR ( health guide network synthesis report )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( ((((health incidence) or (health incident))) or (death incidence)) ((nets synthesis) OR (its synthesis)) report ) or ( health guide network synthesis report ))".
• Adding a wildcard symbol may retrieve word variants: (( ((((health incidence) or (health incident))) or (death incidence)) ((nets synthesis) OR (its synthesis)) report ) or ( health guide network synthesis report ))*.