Perhaps you should try some spelling variations:
networks synthesis » networks systems, nets synthesis
network synthesis » network systems
distance network » distance networks, resistance network, disease network
dense networks » gene networks
earth distance » search distance, path distance, garch distance
health dense » healthy sense, health disease, health device

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 dense networks synthesis report ) OR ( earth distance network synthesis report )).
• Adding a wildcard symbol may retrieve word variants: (( health dense networks synthesis report ) or ( earth distance network synthesis report ))*.