Perhaps you should try some spelling variations:
known about » know about
wang yuhan » wang luhang, wang yan, wang yidan
human ming » human mind, human being, human minds
ming known » king know
fang yuan » wang yan, meng yuan, tang yun
anh tran » oanh tran, anh tuan, binh tran
1 human » 2 human, 3 human

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "((anh tran) OR (binh thanh)) ((fang yuan) OR (wang yuhan)) 1 human ming known about ;~".
• Adding a wildcard symbol may retrieve word variants: ((anh tran) OR (binh thanh)) ((fang yuan) OR (wang yuhan)) 1 human ming known about ;*.