Perhaps you should try some spelling variations:
thanh ve » hanh ve, thanh va, thanh vien
te sach » toc sach
sach tu » sach thu, cach tu, sach ty
tu xang » ty xang, tu lang, tu quang
hieu va » lieu va, hieu qua
xuc gia » luc gia, tuc gia, quoc gia
duc gia » quoc gia
ma hoi » mai hoi, xa hoi, me hoi
va cam » va cham, va cac, va cao
ve cua » le cua, de cua, te 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: te sach tu xang ((ma hoi) OR (ma hoa)). hieu va cam ((xuc gia) OR (duc gia)) thanh ve cua te~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach tu xang ((ma hoi) OR (ma hoa)). hieu va cam ((xuc gia) or (duc gia)) thanh ve cua te~".
• Adding a wildcard symbol may retrieve word variants: te sach tu xang ((ma hoi) OR (ma hoa)). hieu va cam ((xuc gia) or (duc gia)) thanh ve cua te*.