Perhaps you should try some spelling variations:
yanling yang » yang yang, ying yang
sharing risk » sharing best, during risk
among heis » among ers, among hiv, among jews
can boost » a boost, can best
can lower » can losers, a lower, can low
can lose » can close, can lost, can losers
wang » wing, wan, lang

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang yanling yang ((can boost) or (((can lose) or (can lower)))) sharing risk among heis ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang yanling yang ((can boost) OR (((can lose) OR (can lower)))) sharing risk among heis ;.
• Adding a wildcard symbol may retrieve word variants: wang yanling yang ((can boost) or (((can lose) or (can lower)))) sharing risk among heis ;*.