Perhaps you should try some spelling variations:
network synthesis » network systems
guidance network » guide network, finance network, impedance network
health substrate » earth substrates, healing substrates, smooth substrate
health guidance » health evidence, health finance
state network » state networks, aware network
health state » health status

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