Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
hanh vai » hanh vi, hanh va, hanh tai
su sach » so sach, vu sach
nang xa » nang x, lang xa, nang ma
va hanh » van hanh, va thanh, va danh
vai cua » dai cua, hai cua, lai cua
cua tuc » cua duc, cua tu, cua thuoc
van am » van nam, van lam, van dam
am hoc » ad hoc

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) or (vu bach)) ky nang xa hoi. hieu van am hoc va hanh vai cua tuc~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (vu bach)) ky nang xa hoi. hieu van am hoc va hanh vai cua tuc.
• Adding a wildcard symbol may retrieve word variants: ((su sach) or (vu bach)) ky nang xa hoi. hieu van am hoc va hanh vai cua tuc*.