Perhaps you should try some spelling variations:
main network » chain network, brain networks, chain networks
network site » network sites, network size, network state
wang yang » wang liang, wang yanling
site rong » site rough
rong shu » cong shu, rong su, tong shui
van ha » van ham, van phan
van a » can a, jan a, man a

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ((wang yang) or (wang yan)) ((van a) OR (van ha)) main network site rong shu ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((wang yang) OR (wang yan)) ((van a) OR (van ha)) main network site rong shu ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((wang yang) or (wang yan)) ((van a) OR (van ha)) main network site rong shu ;*".