Perhaps you should try some spelling variations:
khong cong » thong cong, khong cang, chong cong
doi chieu » doc hieu, doi chi, mot chieu
lanh sang » anh sang, lanh bang, doanh sang
cua khong » hua khong, cua phuong, cua thuong
ho chieu » theo chieu, hoc thieu, mot chieu
anh dang » anh dong, anh dung, anh bang
cong tac » cong ty
tac than » tac thanh, tam than, tac nhan
than cau » toan cau, phan cau, than cap

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 - ((lanh sang) or (anh dang)) cua khong cong tac than cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doi chieu) OR (ho chieu)) tinh - ((lanh sang) OR (anh dang)) cua khong cong tac than cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((doi chieu) OR (ho chieu)) tinh - ((lanh sang) or (anh dang)) cua khong cong tac than cau".
• Adding a wildcard symbol may retrieve word variants: ((doi chieu) OR (ho chieu)) tinh - ((lanh sang) or (anh dang)) cua khong cong tac than cau*.