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 get » young let, young ages, young men
wan yan » wang yan, nan yan, wai yan

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 ((iii referaten) OR (iii referat)) von david young get ;~.
• Adding a wildcard symbol may retrieve word variants: wan yan liang ((iii referaten) or (iii referat)) von david young get ;*.