Perhaps you should try some spelling variations:
frequency networks » sequence networks
science networks » sequence networks, alliance networks, service networks
sciences network » services network
science network » science work, sequence networks
science works » science world, science parks, science workshop

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: (((( ((((science networks) OR (sciences network))) OR (science network)). historical survey ) OR ( science works. historical survey ))) OR ( frequency networks. historical survey )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(((( ((((science networks) OR (sciences network))) or (science network)). historical survey ) or ( science works. historical survey ))) or ( frequency networks. historical survey ))".
• Adding a wildcard symbol may retrieve word variants: (((( ((((science networks) OR (sciences network))) or (science network)). historical survey ) or ( science works. historical survey ))) or ( frequency networks. historical survey ))*.