Perhaps you should try some spelling variations:
hard things » hard thing, bad things, smart things
wang yang » wang yan, wang liang
dong yang » dong hoang, yang yang, dan yang
fang 3.3 » jing 3.3
3.3 hard » 3.1 hard, 3.3 shared, 5.3.3 hard
things a » things _, things 1
dann bin » dong bin

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: wang yanling fang 3.3 hard things a ((wang yang) OR (((dong yang) OR (dann bin)))) ;~.
• Adding a wildcard symbol may retrieve word variants: wang yanling fang 3.3 hard things a ((wang yang) or (((dong yang) or (dann bin)))) ;*.