Perhaps you should try some spelling variations:
yang liang » wang liang, yang yang, peng liang
iii formen » ii formen, die formen
david hong » david ng
yan liang » wang liang, you liang, yan wang
von david » john david, ben david, jan david
iii form » iii from
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: wan ((yan liang) OR (yang liang)) ((iii formen) OR (iii form)) von david hong ghi ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wan ((yan liang) OR (yang liang)) ((iii formen) or (iii form)) von david hong ghi ;~".
• Adding a wildcard symbol may retrieve word variants: wan ((yan liang) OR (yang liang)) ((iii formen) or (iii form)) von david hong ghi ;*.