Perhaps you should try some spelling variations:
doc sach » hoc sach, toc sach, nuoc sach
lang van » dang van, tang van, hoang van
dang xay » dang van, van xay
hieu van » hieu va, thien van, lieu va
anh gian » anh giang, anh giao, manh giang
gian cua » gian xu, ban cua
sach ty » sach y, sach tu, sach thu
van cac » van hac, van cau, van bac
cac toc » cac toi, cac nuoc, cac thoi
toc van » hoc van, toc san, tac van
van anh » van thanh, tuan anh, van minh
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 ty ((lang van) OR (dang xay)) hoi. hieu van cac toc van anh gian cua te~.
• Adding a wildcard symbol may retrieve word variants: doc sach ty ((lang van) or (dang xay)) hoi. hieu van cac toc van anh gian cua te*.