Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
theo hieu » theo chieu, theo tieu, thien hieu
hieu lang » chieu sang, hieu quang, nhieu tang
dinh chi » dinh thi, dinh tri
dinh moi » dinh so, dinh tri, dinh thi
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 hieu lang - hoang ((dinh chi) or (dinh moi)) nhung cong dan toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo hieu lang - hoang ((dinh chi) OR (dinh moi)) nhung cong dan toan cau.
• Adding a wildcard symbol may retrieve word variants: theo hieu lang - hoang ((dinh chi) or (dinh moi)) nhung cong dan toan cau*.