Perhaps you should try some spelling variations:
networks synthesis » networks systems, nets synthesis
network synthesis » network systems
health influence » heart influence, hemath influence, heads influence
health impedance » health importance, health temperance, head impedance
death influence » hemath influence, deans influence, weather influence
earth influence » heart influence, early influence, birth influence

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 influence) OR (death influence))) OR (earth influence)) networks synthesis report ) OR ( health impedance network synthesis report )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( ((((health influence) OR (death influence))) or (earth influence)) networks synthesis report ) or ( health impedance network synthesis report ))".
• Adding a wildcard symbol may retrieve word variants: (( ((((health influence) OR (death influence))) or (earth influence)) networks synthesis report ) or ( health impedance network synthesis report ))*.