Perhaps you should try some spelling variations:
tinh doi » trinh doc, trinh do, tinh hoc
su sach » so sach, vu sach
sach ky » sac ky, sach y, sach ty
doi cua » dai cua, hoi cua
va tinh » may tinh
cua tre » cua te, cuu tre, cua triet
lang xa » lang ha, dang xay, lang van
nang xa » nang x, nang ma, mang xa
xuc va » duc va, tuc va, luc va
va cam » va cham, va cao, va cai

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 xa) or (lang xa)) hoi. hieu ((va cam) or (va cac)) xuc va tinh doi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ky ((nang xa) OR (lang xa)) hoi. hieu ((va cam) OR (va cac)) xuc va tinh doi cua tre.
• Adding a wildcard symbol may retrieve word variants: su sach ky ((nang xa) or (lang xa)) hoi. hieu ((va cam) or (va cac)) xuc va tinh doi cua tre*.