Perhaps you should try some spelling variations:
iii forschen » iii ursachen, 2 forschen, 1 forschen
yang klang » ylang ylang, yang yang, lang lang
iii formen » ii formen, die formen, iii form
wan yang » wang yang, dan yang, tan yang
david ng » david n, david a, david _
david g » david a, david _, david k

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

• Performing a fuzzy search may retrieve terms with similar spellings: wan yang klang ((iii forschen) OR (iii formen)) beim ((david ng) or (david g)) hai ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wan yang klang ((iii forschen) OR (iii formen)) beim ((david ng) OR (david g)) hai ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wan yang klang ((iii forschen) OR (iii formen)) beim ((david ng) or (david g)) hai ;*".