Perhaps you should try some spelling variations:
wang yangming » wang yangming's, wang yanling, wang danning
gender part » gender parity, gender smart, gender pay
gene part » gene pairs, scene part, done part
tong song » hong song, song seng, tong king
song skin » song shin, song jin, song min
sin » sign, sind, sein

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: ((wang yangming) OR (dong sin)) ya hua ((gene part) OR (gender part)) tong song skin ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((wang yangming) or (dong sin)) ya hua ((gene part) OR (gender part)) tong song skin ;~".
• Adding a wildcard symbol may retrieve word variants: ((wang yangming) or (dong sin)) ya hua ((gene part) OR (gender part)) tong song skin ;*.