Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
doi chieu » doc hieu, doi chi, ho chieu
trung cua » truong cua, trung tuan, trung cap
cuong tap » luong tap, luong tai, cong tan
than cua » nhan cua, thai cua, ban cua
cong tac » cong ty
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 xanh - hanh ((than cua) or (trung cua)) nhung ((cuong tap) OR (cong tac)) toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu xanh - hanh ((than cua) OR (trung cua)) nhung ((cuong tap) OR (cong tac)) toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chieu xanh - hanh ((than cua) or (trung cua)) nhung ((cuong tap) OR (cong tac)) toan cau".
• Adding a wildcard symbol may retrieve word variants: doi chieu xanh - hanh ((than cua) or (trung cua)) nhung ((cuong tap) OR (cong tac)) toan cau*.