Perhaps you should try some spelling variations:
doc sach » hoc sach, toc sach, nuoc sach
va danh » va dinh, va dan, dia danh
va hanh » van hanh, va thanh, ban hanh
sach ly » sach y, sach lo, sach ty
cac xuc » cam xuc, cac nuoc, chat xuc
hieu va » lieu va, hieu qua
ly cong » li cong, ky cong, le cong
vi cua » vai cua, di cua
cua te » cua tu

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

• If you are trying to use Boolean operators, they must be ALL CAPS: doc sach ly cong ((xa hoi) OR (ha noi)). hieu va cac xuc ((va hanh) OR (va danh)) vi cua te~.
• Adding a wildcard symbol may retrieve word variants: doc sach ly cong ((xa hoi) or (ha noi)). hieu va cac xuc ((va hanh) or (va danh)) vi cua te*.