Perhaps you should try some spelling variations:
thanh tung » thanh cong
doi chieu » doc hieu, doi chi, mot chieu
dang cong » dung cong
ho chieu » theo chieu, hoc thieu, mot chieu
tung cua » trung cua, tuong cua, dung cua
cua dang » cua cong, cua ban
cong tac » cong ty
toan cau » toan ban, toan tap, toan tai
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: ((doi chieu) or (ho chieu)) tinh - thanh tung cua dang cong tac ((toan cau) OR (toan cao))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doi chieu) OR (ho chieu)) tinh - thanh tung cua dang cong tac ((toan cau) OR (toan cao)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((doi chieu) or (ho chieu)) tinh - thanh tung cua dang cong tac ((toan cau) OR (toan cao))".
• Adding a wildcard symbol may retrieve word variants: ((doi chieu) or (ho chieu)) tinh - thanh tung cua dang cong tac ((toan cau) OR (toan cao))*.