Perhaps you should try some spelling variations:
networks synthesis » network synthesis, networks systems, nets synthesis
world synthesis » work synthesis, world hypothesis, sound synthesis
health science » health sciences
guide networld » guided networks, guided network, guide world
guide networks » guided networks, guided network, grade networks
guide network » guided network, side network, wide network
search guide » search guided, research guide, search 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 science world synthesis report ) OR ((( search ((guide networld) OR (guide network)) synthesis report ) OR ( search guide networks synthesis report )))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( health science world synthesis report ) or ((( search ((guide networld) OR (guide network)) synthesis report ) or ( search guide networks synthesis report ))))".
• Adding a wildcard symbol may retrieve word variants: (( health science world synthesis report ) or ((( search ((guide networld) OR (guide network)) synthesis report ) or ( search guide networks synthesis report ))))*.