Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
chieu sang » chieu sach, chieu xanh, hieu lang
trung tuan » trung thanh, trung tam, tran tuan
truong cua » truong ca, truong quan, truong cao
trung cua » trung cap, dung cua, thong cua
cong tac » cong ty
tac toan » tap toan, tam toan, hach toan
toan cau » toan cao, toan ban, toan tap

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

• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu sang - thanh ((((trung cua) OR (trung tuan))) OR (truong cua)) trong cong tac toan cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chieu sang - thanh ((((trung cua) OR (trung tuan))) or (truong cua)) trong cong tac toan cau~".
• Adding a wildcard symbol may retrieve word variants: theo chieu sang - thanh ((((trung cua) OR (trung tuan))) or (truong cua)) trong cong tac toan cau*.