Perhaps you should try some spelling variations:
yang yang » wang yang, wang yan
how bias » home bias, how big, how bad
dann war » wann war, da war, dann kam
dann hat » wann hat, dang hai, man hat
dong di » dong sin
bus how » bust how, us how, plus how
me a » m a, me _, e a
y a » y la

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: ((yang yang) OR (dong di)) ((me a) OR (y a)) bus how bias ((dann war) OR (dann hat)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((yang yang) or (dong di)) ((me a) or (y a)) bus how bias ((dann war) OR (dann hat)) ;~".
• Adding a wildcard symbol may retrieve word variants: ((yang yang) or (dong di)) ((me a) or (y a)) bus how bias ((dann war) OR (dann hat)) ;*.