Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
su sach » so sach, vu sach
va danh » va dinh, va dan, dia danh
va hanh » van hanh, va thanh, ban hanh
van cam » van nam, van lam, van cau
nang xa » nang x, lang xa, nang ma
tang ma » mang may, tang van
cua tre » cua te, cuu tre, cua triet
vi cua » vai cua, di cua

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 y ((nang xa) or (tang ma)) hoi. hieu van cam xuc ((va hanh) or (va danh)) vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach y ((nang xa) OR (tang ma)) hoi. hieu van cam xuc ((va hanh) OR (va danh)) vi cua tre.
• Adding a wildcard symbol may retrieve word variants: su sach y ((nang xa) or (tang ma)) hoi. hieu van cam xuc ((va hanh) or (va danh)) vi cua tre*.