Perhaps you should try some spelling variations:
thanh ve » hanh ve, thanh va, thanh vien
te sach » toc sach
duc gia » quoc gia
tuc gia » tac gia, toc gia, luc gia
sach tu » sach thu, cach tu, sach ty
hieu va » lieu va, hieu qua
xang ma » nang ma, sang ma, rang ma
tang ma » mang may, tang van
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) OR (tang ma)) hoi. hieu va cam ((tuc 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) OR (tang ma)) hoi. hieu va cam ((tuc gia) or (duc gia)) thanh ve cua te~".
• Adding a wildcard symbol may retrieve word variants: te sach tu ((xang ma) OR (tang ma)) hoi. hieu va cam ((tuc gia) or (duc gia)) thanh ve cua te*.