Perhaps you should try some spelling variations:
network synthesis » network systems
distance network » distance networks, resistance network, disease network
health distance » healthy distance, earth distance, health assistance
health science » health sciences
network system » network systems, networked systems
system report » system reform, system support, system reforms
guide network » guided network, side network, wide network
health dence » health device, health evidence, health devices
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 dence) OR (health science)) network system report ) OR ((( health guide network synthesis report ) OR ( health distance network synthesis report )))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( ((health dence) OR (health science)) network system report ) or ((( health guide network synthesis report ) or ( health distance network synthesis report ))))".
• Adding a wildcard symbol may retrieve word variants: (( ((health dence) OR (health science)) network system report ) or ((( health guide network synthesis report ) or ( health distance network synthesis report ))))*.