Perhaps you should try some spelling variations:
nhanh tinh » nhanh thanh, hanh trinh, nhan sinh
thong than » thong thanh, thong phan, thong nhan
doi chieu » doc hieu, doi chi, mot chieu
cua thong » cua thuong, cua khong, cua tong
than toan » thanh toan, than tuan, thuat toan
ho chieu » theo chieu, hoc thieu, mot chieu
tinh cua » trinh cua, sinh cua, tinh chat
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)) tinh - nhanh tinh cua thong thong than toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doi chieu) OR (ho chieu)) tinh - nhanh tinh cua thong thong than toan cau.
• Adding a wildcard symbol may retrieve word variants: ((doi chieu) or (ho chieu)) tinh - nhanh tinh cua thong thong than toan cau*.