Perhaps you should try some spelling variations:
thien van » thi van
ban thanh » ban hanh
nang cau » nang cao, hang cau, nang dau
van nhan » van phan, van thanh, danh nhan
nhan luc » nang luc
ban hang » ngan hang
su triet » su viet, su tien, ve triet
vi su » va su, ve su, ki su

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "tu cac ky nang cau hoi. thien van nhan luc ((ban thanh) OR (ban hang)) vi su triet~".
• Adding a wildcard symbol may retrieve word variants: tu cac ky nang cau hoi. thien van nhan luc ((ban thanh) OR (ban hang)) vi su triet*.