Perhaps you should try some spelling variations:
thuoc sach » hoc sach, nuoc sach, thuat sach
va dinh » van dinh, va kinh, va tinh
va danh » va dan, va hanh, dia danh
sach ky » sac ky, sach y, sach ty
hieu ve » hieu va, hieu van
cua tre » cua te, cuu tre, cua triet
nang ma » tang ma, sang ma, nang cao
nang xa » nang x, lang xa, mang xa
vi cua » vai cua, di cua
ve cam » ve cham, ve cac, va cam

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

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