Perhaps you should try some spelling variations:
knowing about » known about, know about, knowing your
ting knowing » seeing knowing, tree knowing
guang ting » huang ting, huang jing, huang ying
bin zhang » binh thang, li zhang, jia zhang
wang yang » wang yan, wang liang, wang yanling
wei guang » wei shang, wei qiang, fei huang
gan guan » yan guan, quan guan, fan guon

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

• Performing a fuzzy search may retrieve terms with similar spellings: bin zhang ((wang yang) or (gan guan)) wei guang ting knowing about ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: bin zhang ((wang yang) OR (gan guan)) wei guang ting knowing about ;*.