Perhaps you should try some spelling variations:
thanh tung » thanh cong
cuong tap » luong tap, cong tac, luong tai
ho chieu » theo chieu, hoc thieu, doi chieu
tung cua » trung cua, tuong cua, dung cua
cong tap » cong tac, cong tan, tong tap
toan cau » toan cao, toan ban, toan tap
doi chi » doi khi

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: ((ho chieu) OR (doi chi)) tinh - thanh tung cua ban ((cong tap) OR (cuong tap)) toan cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chieu) or (doi chi)) tinh - thanh tung cua ban ((cong tap) OR (cuong tap)) toan cau~".
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) or (doi chi)) tinh - thanh tung cua ban ((cong tap) OR (cuong tap)) toan cau*.