Perhaps you should try some spelling variations:
va triet » va thiet, va trien, ve triet
hanh di » hanh vi, hanh de, hang di
va hanh » van hanh, va thanh, va danh
cam luc » cam xuc, cau luc
hieu va » lieu va, hieu qua
van hoi » van hoa, van hoc, van hoe
ky dang » ky nang, ky danh
ky lang » ky nang, ky tang, tay lang
va cam » va cham, va cac, va cao
luc va » duc va, tuc va, loc va
tu dan » tuc dan, tu ban, cu dan

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

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