Perhaps you should try some spelling variations:
nang cai » nang cao, nang tai, nang cap
hieu van » hieu va, thien van, lieu va
hanh vai » hanh vi, hanh va, hanh tai
ve triet » va trien, su triet
vu sach » vu bach, su sach, vu khach
cai roi » lai roi
van cam » van nam, van lam, van cau
cam tuc » cam xuc, cam tu, nam thuc
va hanh » van hanh, va thanh, ban hanh
y nang » ky nang, ly nang, v nang
tuc va » thuc va, truc va, tuc xa
vai ve » va ve, dai ve, vai va

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu sach y nang cai roi. hieu van cam tuc va hanh vai ve triet~.
• Adding a wildcard symbol may retrieve word variants: vu sach y nang cai roi. hieu van cam tuc va hanh vai ve triet*.