Perhaps you should try some spelling variations:
network synthesis » network systems
networks systems » network systems, networks system, networked systems
guidance network » guide network, finance network, impedance network
health incident » health including
health guidance » health finance, health substance
health science » health sciences
path incidence » death incidence, health incidence, high incidence
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 evidence) OR (health science)) network synthesis report ) OR ( ((path incidence) OR (health incident)) networks systems report ))) OR ( health guidance network synthesis report )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(((( ((health evidence) OR (health science)) network synthesis report ) or ( ((path incidence) or (health incident)) networks systems report ))) or ( health guidance network synthesis report ))".
• Adding a wildcard symbol may retrieve word variants: (((( ((health evidence) OR (health science)) network synthesis report ) or ( ((path incidence) or (health incident)) networks systems report ))) or ( health guidance network synthesis report ))*.