Perhaps you should try some spelling variations:
6.3 poland » 6.3 land, 6 poland
wang yang » wang liang, wang yanling
yan liang » yang liang, wang liang, you liang
yang muxi » yang jui, yang xi, yang hui
pei yang » wei yang, hui yang, pei yun
yang 6.3 » yang 4.3, yang y.c
poland a » poland _
tan hua » tuan hua, wang hua, tan chia

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 yang) OR (wang yan))) OR (yan liang)) ((tan hua) OR (yang muxi)) pei yang 6.3 poland a ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((wang yang) OR (wang yan))) or (yan liang)) ((tan hua) or (yang muxi)) pei yang 6.3 poland a ;~".
• Adding a wildcard symbol may retrieve word variants: ((((wang yang) OR (wang yan))) or (yan liang)) ((tan hua) or (yang muxi)) pei yang 6.3 poland a ;*.