Perhaps you should try some spelling variations:
theo chieu » theo tieu, theo chu, thi chieu
khong cong » thong cong, khong cang, chong cong
trinh cua » trinh luat, trinh quan, trinh luan
ho chieu » hoc thieu, doi chieu, mot chieu
tinh cua » sinh cua, tinh chat, tranh cua
cong tan » cong tac, cong san, cong thanh
tan ban » toan ban, tang ban, van ban
ban cau » bang cau, ban can, van cau

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: ((ho chieu) OR (theo chieu)) sach - hanh ((trinh cua) OR (tinh cua)) khong cong tan ban cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chieu) or (theo chieu)) sach - hanh ((trinh cua) OR (tinh cua)) khong cong tan ban cau~".
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) or (theo chieu)) sach - hanh ((trinh cua) OR (tinh cua)) khong cong tan ban cau*.