Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
thi chieu » thi chien, thi hieu, thi hien
trang cua » tranh cua, tang cua, trung cua
hang cong » dang cong, hang nong, bang cong
hang cua » mang cua, hang ca, huong 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.

• Performing a fuzzy search may retrieve terms with similar spellings: ((theo chieu) or (thi chieu)) xanh - hanh ((trang cua) or (hang cua)) hang cong tac toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((theo chieu) OR (thi chieu)) xanh - hanh ((trang cua) OR (hang cua)) hang cong tac toan cau.
• Adding a wildcard symbol may retrieve word variants: ((theo chieu) or (thi chieu)) xanh - hanh ((trang cua) or (hang cua)) hang cong tac toan cau*.