Perhaps you should try some spelling variations:
cua viet » ca viet, hoa viet, cua vat
va triet » va thiet, va trien, ve triet
cam duc » cam xuc, cao duc, pham duc
hanh di » hanh vi, hanh de, hang di
va hanh » van hanh, va thanh, va danh
tuc dan » thuc dan, thuc day, tung dan
van hoi » van hoa, van hoc, van hoe
ky dang » ky nang, ky danh
ky lang » ky nang, ky tang, tay lang
hieu va » lieu va, hieu qua
va cam » va cham, va cac, va cao

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 dang)) van hoi. hieu va cam 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 dang)) van hoi. hieu va cam duc va hanh di ((va triet) OR (cua viet)).
• Adding a wildcard symbol may retrieve word variants: tuc dan ((ky lang) or (ky dang)) van hoi. hieu va cam duc va hanh di ((va triet) or (cua viet))*.