Perhaps you should try some spelling variations:
yang guang » yang yang, yang liang
main chang » main changes, main chance, main charge
chang mae » chang ha, changes made
yan guan » gan guan, yan yuan, yihan guan
kong siu » kong eiu, wong siu, dong sin
yan tan » tan tan, yan clan, yan wang
2 main » 1 main

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: lang ((yan tan) OR (((yan guan) OR (yang guang)))) 2 main chang mae ((kong siu) OR (long did)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "lang ((yan tan) or (((yan guan) OR (yang guang)))) 2 main chang mae ((kong siu) or (long did)) ;~".
• Adding a wildcard symbol may retrieve word variants: lang ((yan tan) or (((yan guan) OR (yang guang)))) 2 main chang mae ((kong siu) or (long did)) ;*.