Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
van hanh » van thanh, ban hanh, van anh
hanh dai » hanh tai, hanh dao, vanh dai
su sach » so sach, vu sach
sach ky » sac ky, sach y, sach ty
van cam » van nam, van lam, van cau
xuc van » duc van, luc van, vuc van
ma hoi » mai hoi, ma hoa, me hoi
cua tu » cua tuc, cua su, cua cu

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sach ky nang ((ma hoi) or (xa hoi)). hieu van cam xuc van hanh dai cua tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ky nang ((ma hoi) OR (xa hoi)). hieu van cam xuc van hanh dai cua tu*.