Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
trung cong » truong cong, trong cong, trung uong
hang cua » mang cua, huong cua, thong cua
cong tac » cong ty
tac toan » tap toan, tam toan, hach toan
toan cau » toan cao, toan ban, toan tap
cho chu » cho thue
hang ca » hang va, nang cao, hang tai

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) OR (cho chu)) thanh - thanh ((hang cua) OR (hang ca)) trung cong tac toan cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((theo chieu) or (cho chu)) thanh - thanh ((hang cua) OR (hang ca)) trung cong tac toan cau~".
• Adding a wildcard symbol may retrieve word variants: ((theo chieu) or (cho chu)) thanh - thanh ((hang cua) OR (hang ca)) trung cong tac toan cau*.