Perhaps you should try some spelling variations:
small farmers » small firms
ying yang » yang yang, yin yang, ying chang
jie small » live small, wine small, one small
union dem » union does, union die
union das » union case, union does, union a
yang jie » yang jin, yang di, yang jui
yu yang » du yang, yi yang, yu fang

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((ying yang) or (yu yang)) yang jie small farmers ((union dem) OR (union das)) bei ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ying yang) OR (yu yang)) yang jie small farmers ((union dem) OR (union das)) bei ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ying yang) or (yu yang)) yang jie small farmers ((union dem) OR (union das)) bei ;*".