Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
danh vai » danh sai, danh va, doanh van
lam duoc » nam duoc, luat duoc, lam thuoc
vai cua » dai cua, hai cua, lai cua
va danh » va dinh, va dan, va hanh
duoc va » nuoc va, duc va, duoc ma
van lam » van nam
tu sach » thu sach, su sach, te sach
sach ky » sac ky, sach y, sach ty
lang xa » lang ha, dang xay, lang van
nang xa » nang ma, mang xa, ang xa
cua tre » cua te, cuu tre, cua triet

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach ky ((((nang xa) or (lang xa))) or (nang x)) hoi. hieu van lam duoc va danh vai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky ((((nang xa) OR (lang xa))) OR (nang x)) hoi. hieu van lam duoc va danh vai cua tre.
• Adding a wildcard symbol may retrieve word variants: tu sach ky ((((nang xa) or (lang xa))) or (nang x)) hoi. hieu van lam duoc va danh vai cua tre*.