Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
thong cong » trong cong, tong cong, thong thong
doi chieu » doc hieu, doi chi, thi chieu
trinh cua » tinh cua, trinh luat, trinh quan
cua thong » cua thuong, cua khong, cua tong
ho chieu » theo chieu, hoc thieu, thi chieu
cong tan » cong tac, cong san, cong thanh
tran cau » tran chau, toan cau, ran cau

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((((ho chieu) or (mot chieu))) or (doi chieu)) sach - hanh trinh cua thong cong tan tran cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((((ho chieu) OR (mot chieu))) OR (doi chieu)) sach - hanh trinh cua thong cong tan tran cau.
• Adding a wildcard symbol may retrieve word variants: ((((ho chieu) or (mot chieu))) or (doi chieu)) sach - hanh trinh cua thong cong tan tran cau*.