Perhaps you should try some spelling variations:
doi chieu » doc hieu, doi chi, mot chieu
trinh cua » trinh luat, trinh quan, trinh luan
hang cong » dang cong, hang nong, bang cong
cong danh » cuong danh, cong dan, cong thanh
danh toan » manh toan, anh toan, dan toan
ho chieu » theo chieu, hoc thieu, mot chieu
tinh cua » sinh cua, tinh chat, tranh cua
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: ((doi chieu) or (ho chieu)) sach - hanh ((trinh cua) or (tinh cua)) hang cong danh toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doi chieu) OR (ho chieu)) sach - hanh ((trinh cua) OR (tinh cua)) hang cong danh toan cau.
• Adding a wildcard symbol may retrieve word variants: ((doi chieu) or (ho chieu)) sach - hanh ((trinh cua) or (tinh cua)) hang cong danh toan cau*.