Perhaps you should try some spelling variations:
nang cau » nang cao, hang cau, nang dau
hieu van » hieu va, thien van, lieu va
van hanh » van thanh, ban hanh, van anh
ve triet » va trien, su triet
hoc sac » hoc sach, hoc cac, hoc mac
van cam » van nam, van lam, van cau
cam tuc » cam xuc, cam tu, nam thuc
tuc van » thuc van, truc van, tuc va
sac ky » cac ky, sai ky
cua te » cua tu

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

• If you are trying to use Boolean operators, they must be ALL CAPS: hoc sac ky nang cau hoi. hieu van cam tuc van hanh vi ((cua te) OR (ve triet))~.
• Adding a wildcard symbol may retrieve word variants: hoc sac ky nang cau hoi. hieu van cam tuc van hanh vi ((cua te) or (ve triet))*.