Perhaps you should try some spelling variations:
long grain » long green, long trail
long chain » long chemin, long han
guan chia » tuan china, tan chia
yuan wang » yan wang, yuan chang, qian wang
yuan kang » yuan chang, chan kang, yuan kai
wang gan » wang yan, wang ban, wang dan
gan guan » yan guan, quan guan, fan guon

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 gan guan chia ((yuan wang) OR (yuan kang)) lin ((long chain) OR (long grain)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang gan guan chia ((yuan wang) OR (yuan kang)) lin ((long chain) or (long grain)) ;~".
• Adding a wildcard symbol may retrieve word variants: wang gan guan chia ((yuan wang) OR (yuan kang)) lin ((long chain) or (long grain)) ;*.