Perhaps you should try some spelling variations:
cua triet » cua viet, su triet
doanh van » doan van, doanh va, doanh ban
thu sach » thuat sach, thuoc sach, thu hoach
va doanh » van doanh, vay doanh, va danh
va triet » va thiet, va trien, ve triet
nang co » nang cao, nang doc, nang noi
hieu va » lieu va, hieu qua
thuc va » thuc vat, thuc dan, thuc day
tu sach » su sach, te sach, tu cach
co hoi » co hoc, co loi
va am » va lam, va cam

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: ((thu sach) OR (tu sach)) ky nang co hoi. hieu va am thuc va doanh van ((cua triet) OR (va triet))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((thu sach) OR (tu sach)) ky nang co hoi. hieu va am thuc va doanh van ((cua triet) or (va triet))~".
• Adding a wildcard symbol may retrieve word variants: ((thu sach) OR (tu sach)) ky nang co hoi. hieu va am thuc va doanh van ((cua triet) or (va triet))*.