Perhaps you should try some spelling variations:
cua viet » ca viet, hoa viet, cua vat
va triet » va thiet, va trien, ve triet
lang van » dang van, tang van, hoang van
cham luc » cham soc, nhan luc, cham cuu
va cham » va chat, va tham
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 lang » ky nang, ky dang, ky tang
hieu va » lieu va, hieu qua
luc va » duc va, tuc va, loc va

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) or (thuc hanh)) ky lang van hoi. hieu va cham luc va hanh vi ((va triet) or (cua viet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tuc dan) OR (thuc hanh)) ky lang van hoi. hieu va cham luc va hanh vi ((va triet) OR (cua viet)).
• Adding a wildcard symbol may retrieve word variants: ((tuc dan) or (thuc hanh)) ky lang van hoi. hieu va cham luc va hanh vi ((va triet) or (cua viet))*.