Perhaps you should try some spelling variations:
yang guang » yang yang, yan guan, yang liang
guang han » kang han, zhang han
heat gain » health gain, health gains, wheat grains
hua gain » hua ban, via gain
run gain » run pain
gang hai » dang hai, shang hai, eang hay
yang ii » yang di, yang xi, yang yi

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

• Performing a fuzzy search may retrieve terms with similar spellings: yang guang han ((((hua gain) or (heat gain))) or (run gain)) yang ii gang hai ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: yang guang han ((((hua gain) OR (heat gain))) OR (run gain)) yang ii gang hai ;.
• Adding a wildcard symbol may retrieve word variants: yang guang han ((((hua gain) or (heat gain))) or (run gain)) yang ii gang hai ;*.