Perhaps you should try some spelling variations:
yan tuan » yan guan, anh tuan, can turn
yan yuan » yan guan, fang yuan, nan yan
hua gain » heat gain, run gain, hua ban
yang jin » yang jie, yang jun, ying jin
pang jun » yang jui
yang li » yang lin, yang di, yang xi
wang » wing, wan, lang
haul » hall, paul, hail

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang ((yan tuan) OR (yan yuan)) hua gain ((((yang li) or (yang jin))) or (pang jun)) long haul ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang ((yan tuan) OR (yan yuan)) hua gain ((((yang li) OR (yang jin))) OR (pang jun)) long haul ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang ((yan tuan) OR (yan yuan)) hua gain ((((yang li) or (yang jin))) or (pang jun)) long haul ;".
• Adding a wildcard symbol may retrieve word variants: wang ((yan tuan) OR (yan yuan)) hua gain ((((yang li) or (yang jin))) or (pang jun)) long haul ;*.