Perhaps you should try some spelling variations:
reformen von » formen von, reform von, referaten von
david young » david loundy
xiang wei » liang wei, zhang wei, wang wei
von david » john david, ben david, jan david
young ghi » young choi, hong ghi, young get
liang li » ling li, qiang li, liang wei
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 li) or (xiang wei)) reformen von david young ghi ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang yan ((liang li) OR (xiang wei)) reformen von david young ghi ;*.