Perhaps you should try some spelling variations:
waste handling » data handling
zhong tai » hong tan, hong hai, zhong zhi
data hua » data hub, data human, data hob
data how » data hub
ren kang » jin kang, ren weng, ren yan
der weg » der welt
minah » minas, mina, dinah

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

• Performing a fuzzy search may retrieve terms with similar spellings: waste handling ((data hua) OR (data how)) ((ren kang) or (der weg)) (minah or minh) zhong tai ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: waste handling ((data hua) OR (data how)) ((ren kang) OR (der weg)) (minah OR minh) zhong tai ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "waste handling ((data hua) OR (data how)) ((ren kang) or (der weg)) (minah or minh) zhong tai ;*".