Perhaps you should try some spelling variations:
reformen von » formen von, referaten von, reformen der
reform von » form von
yan liang » yang liang, wang liang, you liang
liang iii » klang iii, liang li, liang wei
young ghi » young choi, hong ghi, young get
young let » young get, young men, young er
wang » wing, wan, lang

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: wang yan liang iii ((reformen von) OR (reform von)) david ((young ghi) OR (young let)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang yan liang iii ((reformen von) OR (reform von)) david ((young ghi) or (young let)) ;~".
• Adding a wildcard symbol may retrieve word variants: wang yan liang iii ((reformen von) OR (reform von)) david ((young ghi) or (young let)) ;*.