Perhaps you should try some spelling variations:
hoc sach » hoc sinh, hoc cac, hoc anh
va danh » va dinh, va dan, va hanh
nang xa » nang x, lang xa, nang ma
cua tre » cua te, cuu tre, cua triet
hieu ve » hieu va, hieu van
sach ky » sac ky, sach y, sach ty
cac xuc » cam xuc, cac nuoc, chat xuc
danh vi » hanh vi, dinh vi, danh di
ve cac » va cac, vien cac
xuc va » duc va, tuc va, luc va
thiet » thieu

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc sach ky ((nang xa) or (nang cao)) hoi. hieu ve cac xuc va danh vi ((cua tre) or (va thiet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc sach ky ((nang xa) OR (nang cao)) hoi. hieu ve cac xuc va danh vi ((cua tre) OR (va thiet)).
• Adding a wildcard symbol may retrieve word variants: hoc sach ky ((nang xa) or (nang cao)) hoi. hieu ve cac xuc va danh vi ((cua tre) or (va thiet))*.