Perhaps you should try some spelling variations:
knowing about » known about, know about, knowing your
yang guang » yang yang
yang liang » wang liang, yan liang, yang yang
me knowing » game knowing, _ knowing, 2 knowing
bin zhang » binh thang, li zhang, jia zhang
yan guan » gan guan, yan yuan, yihan guan
16 human » 1 human, 6 human, 10 human
human me » human meta, human _, human co

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: bin zhang ((((yang guang) OR (yang liang))) OR (yan guan)) 16 human me knowing about ;~.
• Adding a wildcard symbol may retrieve word variants: bin zhang ((((yang guang) or (yang liang))) or (yan guan)) 16 human me knowing about ;*.