Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
chieu sang » chieu sach, chieu xanh, hieu lang
cong thanh » dong thanh, cong trinh, truong thanh
tranh cua » doanh cua, manh cua
cua nhung » va nhung
cong tan » cong tac, cong san, cong ty
than cau » phan cau, than cap, thanh chau
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: theo chieu sang - canh tranh cua nhung ((cong tan) OR (cong thanh)) ((than cau) or (toan cau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu sang - canh tranh cua nhung ((cong tan) OR (cong thanh)) ((than cau) OR (toan cau)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chieu sang - canh tranh cua nhung ((cong tan) OR (cong thanh)) ((than cau) or (toan cau))".
• Adding a wildcard symbol may retrieve word variants: theo chieu sang - canh tranh cua nhung ((cong tan) OR (cong thanh)) ((than cau) or (toan cau))*.