Perhaps you should try some spelling variations:
theo chieu » theo tieu, theo chu, thi chieu
hanh trinh » canh tranh, hanh chinh
trinh phan » trinh han, trinh quan, thanh phan
phan chung » phan cung, phan hung, phan thuong
chung cong » nhung cong, chong cong, phung cong
cong tinh » cong trinh, cong vinh, long tinh
ho chieu » hoc thieu, mot chieu, doi chieu
toan cau » toan cao, toan ban, toan tap

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