Perhaps you should try some spelling variations:
cong cong » cong dong, trong cong, dung cong
theo dieu » theo tieu, theo chieu, thuoc dieu
anh tang » anh bang, anh nang, anh sang
anh dang » anh dong, anh dung, anh bang
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh 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 dieu hanh - ((anh tang) or (anh dang)) cua cong cong dan toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo dieu hanh - ((anh tang) OR (anh dang)) cua cong cong dan toan cau*.