Perhaps you should try some spelling variations:
wei formen » zwei formen, drei formen, der formen
david hong » david ng
yuan wang » yan wang, yuan kang, yuan chang
nan yuan » nan yan, yan yuan, fang yuan
wang wei » zhang wei, wang zhi
david g » david a, david _, david k
ghi » nghi, ghia

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

• Performing a fuzzy search may retrieve terms with similar spellings: nan yuan wang wei formen von ((david hong) or (david g)) ghi ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: nan yuan wang wei formen von ((david hong) OR (david g)) ghi ;*.