Perhaps you should try some spelling variations:
su sach » so sach, vu sach
va hanh » van hanh, va thanh, va danh
hieu ve » hieu va, hieu van
cac xuc » cam xuc, cac nuoc, chat xuc
lap hai » lap lai, lap hoat, lanh hai
ve cac » va cac, vien cac
y sang » _ sang, duy sang
va dan » ca dan, va dao, va dau
vi cua » vai cua, di cua
cua tu » cua tuc, cua su, cua cu

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 y sang ((lap hai) or (lap tai)). hieu ve cac xuc ((va hanh) or (va dan)) vi cua tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach y sang ((lap hai) OR (lap tai)). hieu ve cac xuc ((va hanh) OR (va dan)) vi cua tu.
• Adding a wildcard symbol may retrieve word variants: su sach y sang ((lap hai) or (lap tai)). hieu ve cac xuc ((va hanh) or (va dan)) vi cua tu*.