Perhaps you should try some spelling variations:
hoc sach » hoc sinh, hoc cac, hoc anh
te sach » toc sach
ty nang » ky nang, ty xang, ty hang
nang xa » nang x, lang xa, nang ma
hieu ve » hieu va, hieu van
cau luc » cau truc, cau phuc
va hanh » van hanh, va thanh, va danh
hanh di » hanh vi, hanh de, hang di
ve cau » ke cau, va cau, ve cac
luc va » duc va, tuc va, loc va
di cua » dai cua, doi cua, de 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) OR (hoc sach)) ty nang xa hoi. hieu ve cau luc va hanh di cua te~.
• Adding a wildcard symbol may retrieve word variants: ((te sach) or (hoc sach)) ty nang xa hoi. hieu ve cau luc va hanh di cua te*.