Perhaps you should try some spelling variations:
iii referaten » ii referat, den referaten, die referate
iii referat » ii referat, i referat
david young » david loundy
yan liang » yang liang, wang liang, you liang
von david » john david, ben david, jan david
young ghi » young choi, hong ghi, young get
wan yan » wang yan, nan yan, wai yan

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

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