Perhaps you should try some spelling variations:
xach tay » canh tay
sach thu » sach thue, sach thieu, sach tham
lieu van » lieu va, hieu van, sieu van
dan hanh » dang hanh, dan khanh, dan thanh
xang xa » lang xa, mang xa, ang xa
van cau » van dau, van hau, van chat
cau hoc » cau hoi, cau hoa, cao hoc
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 ((xach tay) or (sach thu)) xang xa hoi. lieu van cau hoc dan hanh vi cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su ((xach tay) OR (sach thu)) xang xa hoi. lieu van cau hoc dan hanh vi cua te.
• Adding a wildcard symbol may retrieve word variants: su ((xach tay) or (sach thu)) xang xa hoi. lieu van cau hoc dan hanh vi cua te*.