Perhaps you should try some spelling variations:
cua viet » ca viet, hoa viet, cua vat
phap duc » pham duc, phan duc, phap doc
va triet » va thiet, va trien, ve triet
hanh di » hanh vi, hanh de, hang di
va hanh » van hanh, va thanh, va danh
tuc dan » thuc dan, thuc day, tung dan
va phap » va phat, ban phap
van hoi » van hoa, van hoc, van hoe
ky danh » ky anh, ky dang
ky lang » ky nang, ky dang, ky tang
hieu va » lieu va, hieu qua

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

• Performing a fuzzy search may retrieve terms with similar spellings: tuc dan ((ky lang) or (ky danh)) van hoi. hieu va phap duc va hanh di ((va triet) or (cua viet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tuc dan ((ky lang) OR (ky danh)) van hoi. hieu va phap duc va hanh di ((va triet) OR (cua viet)).
• Adding a wildcard symbol may retrieve word variants: tuc dan ((ky lang) or (ky danh)) van hoi. hieu va phap duc va hanh di ((va triet) or (cua viet))*.