Perhaps you should try some spelling variations:
when challenges » women challenges, open challenges, men challenges
challenges from » challenges faced
huang bin » huang jing, huang ting, huang ying
huang lin » huang jing, huang ting, huang ying
from band » from brand, from bank, from bad
wing tan » wing ian, liang tan, hong tan
band hai » band i, band ii, band aid
wan yan » wang yan, nan yan, wai yan

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: ((wan yan) OR (wing tan)) ((huang bin) OR (huang lin)) when challenges from band hai ;~.
• Adding a wildcard symbol may retrieve word variants: ((wan yan) or (wing tan)) ((huang bin) or (huang lin)) when challenges from band hai ;*.