Perhaps you should try some spelling variations:
kong planning » land planning, cost planning, dose planning
planning land » panning land, planning law, planning laws
kang minh » kang minah, anh minh, kan min
sang minh » kang minah, anh minh, song ming
song min » song ming, gong min, jong min
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: kong planning land law jin ((((kang minh) OR (sang minh))) OR (song min)) cong shu ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "kong planning land law jin ((((kang minh) OR (sang minh))) or (song min)) cong shu ;~".
• Adding a wildcard symbol may retrieve word variants: kong planning land law jin ((((kang minh) OR (sang minh))) or (song min)) cong shu ;*.