Perhaps you should try some spelling variations:
network sites » network states, network size, network steps
network site » network size, network state, networking site
wang cong » wang hong, wang yang, wang jing
wang yong » wang yang, wang hyoung, wang yan
ham main » am main, haul main, a main
rong shu » cong shu, rong su, tong shui

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

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