Perhaps you should try some spelling variations:
van hanh » van thanh, ban hanh, van anh
sach thi » sach thu, sach tai, sach thieu
te sach » toc sach
nang xa » lang xa, nang ma, mang xa
hanh di » hanh vi, hanh de, hang di
hieu ve » hieu va, hieu van
cac xuc » cam xuc, cac nuoc, chat xuc
xuc van » duc van, luc van, vuc van
cua cu » cua chu, cua cau, cua co
ve cac » va cac, vien cac
cua su » qua su

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 thi ((nang xa) OR (nang x)) hoi. hieu ve cac xuc van hanh di ((cua cu) OR (cua su))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach thi ((nang xa) OR (nang x)) hoi. hieu ve cac xuc van hanh di ((cua cu) or (cua su))~".
• Adding a wildcard symbol may retrieve word variants: te sach thi ((nang xa) OR (nang x)) hoi. hieu ve cac xuc van hanh di ((cua cu) or (cua su))*.