Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
doi chieu » doc hieu, doi chi, ho chieu
cua nhung » va nhung
theo chu » theo chieu, cho chu, chao chu
van hanh » van thanh, ban hanh, van anh
cong san » cong tac
san toan » van toan, dan toan, manh toan
toan cau » toan cao, toan ban, toan tap
anh anh » thanh anh, hinh anh, minh anh

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((theo chu) or (doi chieu)) tinh - ((van hanh) or (anh anh)) cua nhung cong san toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((theo chu) OR (doi chieu)) tinh - ((van hanh) OR (anh anh)) cua nhung cong san toan cau.
• Adding a wildcard symbol may retrieve word variants: ((theo chu) or (doi chieu)) tinh - ((van hanh) or (anh anh)) cua nhung cong san toan cau*.