Perhaps you should try some spelling variations:
reformen beim » reformen bei, reformen im, reformen teil
formen beim » formen im, forschen beim, reformen bei
yan liang » yang liang, wang liang, you liang
liang die » klang die, liang dan, liang li
david ng » david g, david n, david a
ng hai » dang hai, hong hai
wang » wing, wan, lang

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang yan liang die ((formen beim) OR (reformen beim)) david ng hai ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang yan liang die ((formen beim) OR (reformen beim)) david ng hai ;*".