Perhaps you should try some spelling variations:
mot chieu » ho chieu
doi chieu » doc hieu, doi chi, ho chieu
canh manh » canh tranh, cach mang, van manh
lanh manh » lanh tranh, lan anh, van manh
hang cong » dang cong, hang nong, bang cong
cua hang » cua dang, cua nhung, cua cong
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: ((mot chieu) or (doi chieu)) tinh - ((canh manh) or (lanh manh)) cua hang cong tac toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((mot chieu) OR (doi chieu)) tinh - ((canh manh) OR (lanh manh)) cua hang cong tac toan cau.
• Adding a wildcard symbol may retrieve word variants: ((mot chieu) or (doi chieu)) tinh - ((canh manh) or (lanh manh)) cua hang cong tac toan cau*.