Perhaps you should try some spelling variations:
yan guan » gan guan, yan yuan, yang guang
guan hua » tuan hua, gui hua, tan hua
hua gain » heat gain, run gain, hua ban
yang jin » yang jie, yang jun, ying jin
nan yan » nan ya, wang yan, qian yan
yang yi » yang di, yang jui
yang xi » yang di, yang jui
hai » hadi, haji, hari

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

• Performing a fuzzy search may retrieve terms with similar spellings: nan yan guan hua gain ((yang yi) or (((yang jin) or (yang xi)))) dang hai ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: nan yan guan hua gain ((yang yi) OR (((yang jin) OR (yang xi)))) dang hai ;.
• Adding a wildcard symbol may retrieve word variants: nan yan guan hua gain ((yang yi) or (((yang jin) or (yang xi)))) dang hai ;*.