Perhaps you should try some spelling variations:
chen coupling » chen chuling, spin coupling, china decoupling
coupling 4 » coupling _, couplings _, decoupling _
wang yang » wang yan, wang liang, wang yanling
yang jin » yang jie, yang jun, ying jin
yang jui » yang judy, yang xi, yang yi
anhang c » anhang 1, anhang a, anhang i
yi chen » jui chen
ngo 1 » nao 1, ngo _, ngo a
1 yi » _ yi, 1 ai, 1 ii

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((((wang yang) or (yang jin))) or (((yang jui) or (yang di))))ngo 1 yi chen coupling 4 anhang c ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((((wang yang) OR (yang jin))) OR (((yang jui) OR (yang di))))ngo 1 yi chen coupling 4 anhang c ;.
• Adding a wildcard symbol may retrieve word variants: ((((wang yang) or (yang jin))) or (((yang jui) or (yang di))))ngo 1 yi chen coupling 4 anhang c ;*.