Perhaps you should try some spelling variations:
sach thu » sach thue, sach thieu, sach tham
van hanh » van thanh, ban hanh, van anh
xuc van » duc van, luc van, vuc van
van dau » van dao, phan dau
su sach » so sach, vu sach
van cau » van hau, van chat, toan cau
xang xa » lang xa, mang xa, ang xa
vi cua » vai cua, di cua
cua te » cua tu

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: su sach thu ((xang xa) or (mang may)) hoi. hieu ((van cau) or (van dau)) xuc van hanh vi cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach thu ((xang xa) OR (mang may)) hoi. hieu ((van cau) OR (van dau)) xuc van hanh vi cua te.
• Adding a wildcard symbol may retrieve word variants: su sach thu ((xang xa) or (mang may)) hoi. hieu ((van cau) or (van dau)) xuc van hanh vi cua te*.