Perhaps you should try some spelling variations:
network synthesis » network systems
defenses network » defense network, addresses network, defenses new
guidance network » guide network, finance network, impedance network
science network » sciences network, science networks, science work
defence network » defense network, defense networks, reference network
health defenses » heart defenses, health diseases, health depends
health guidance » health evidence, health finance, health substance
health science » health sciences
dence network » dense network, dense networks, device network

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 science network synthesis report ) OR ((( health ((dence network) OR (defence network)) synthesis report ) OR ( health defenses network synthesis report ))))) OR ( health guidance network synthesis report )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(((( health science network synthesis report ) or ((( health ((dence network) OR (defence network)) synthesis report ) or ( health defenses network synthesis report ))))) or ( health guidance network synthesis report ))".
• Adding a wildcard symbol may retrieve word variants: (((( health science network synthesis report ) or ((( health ((dence network) OR (defence network)) synthesis report ) or ( health defenses network synthesis report ))))) or ( health guidance network synthesis report ))*.