Perhaps you should try some spelling variations:
sang tay » sang tao, sang tai, sang tac
te sach » toc sach
sach ty » sach y, sach tu, sach thu
ty sang » ty xang, ty hang, duy sang
tay hoi » tay ho, tao hoi, tay thai
hieu ve » hieu va, hieu van
cam luc » cam xuc, cau luc
va danh » va dinh, va dan, va hanh
danh vi » hanh vi, dinh vi, danh di
luc va » duc va, tuc va, loc va
vi cua » vai cua, di cua

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: te sach ty sang tay hoi. ((hieu ve) OR (hieu qua)) cam luc va danh vi cua vat~.
• Adding a wildcard symbol may retrieve word variants: te sach ty sang tay hoi. ((hieu ve) or (hieu qua)) cam luc va danh vi cua vat*.