Perhaps you should try some spelling variations:
managing demand » managing human
managing land » managing labor, managing large, managing a
kang minh » kang minah, anh minh, kan min
sang minh » kang minah, anh minh, song min
long shu » cong shu, tong shui, long du
law jin » law john, law jane

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: wang ((managing land) OR (managing demand)) law jin ((kang minh) OR (sang minh)) long shu ;~.
• Adding a wildcard symbol may retrieve word variants: wang ((managing land) or (managing demand)) law jin ((kang minh) or (sang minh)) long shu ;*.