Perhaps you should try some spelling variations:
yang liang » wang liang, yan liang, yang yang
li reform » i reform, ii reform, vi reform
von david » john david, ben david
jan david » juan david, sahn david, alan david
dan yang » daun yang, tan yang, wang yang
liang li » ling li, qiang li, liang wei
hong ghi » zhong zhi, hong g, hong hai

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: dan yang liang li reform ((von david) OR (jan david)) ((young choi) OR (hong ghi)) ;~.
• Adding a wildcard symbol may retrieve word variants: dan yang liang li reform ((von david) or (jan david)) ((young choi) or (hong ghi)) ;*.