Perhaps you should try some spelling variations:
lam truoc » lam thuoc, nam truoc, lam truong
tin mang » tin nang, ninh mang, tien manh
cam truc » cau truc, nam truc, nam truoc
tu sach » thu sach, te sach, tu cach
su sach » so sach, vu sach
mang xa » lang xa, mang may, dang xay
va hanh » van hanh, va thanh, va danh
vi cua » vai cua, di 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: ((tu sach) OR (su sach)) tin mang xa hoi. lieu va ((cam truc) OR (lam truoc)) va hanh vi cua te~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) OR (su sach)) tin mang xa hoi. lieu va ((cam truc) or (lam truoc)) va hanh vi cua te~".
• Adding a wildcard symbol may retrieve word variants: ((tu sach) OR (su sach)) tin mang xa hoi. lieu va ((cam truc) or (lam truoc)) va hanh vi cua te*.