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

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 ((yang yang) or (yan guan)) wei huang jing knowing about ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: bin zhang ((yang yang) OR (yan guan)) wei huang jing knowing about ;*.