Perhaps you should try some spelling variations:
yang liang » wang liang, yan liang, yang yang
dang haji » dang hai, dato haji
yan guan » gan guan, yan yuan, yang guang
guan hua » tuan hua, gui hua, tan hua
hua gain » heat gain, run gain, hua ban
ying jin » yang jin, jing ji, yang jie
wai yan » wang yan, wei yang

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

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