Perhaps you should try some spelling variations:
trung doanh » trong doanh, trung thanh, trung anh
dung doanh » dung dan, dung dong
chung cong » nhung cong, chong cong, phung cong
hieu lang » chieu sang, hieu quang, nhieu tang
cong manh » cong danh, duong manh, cong thanh
toan cau » toan ban, toan tap, toan tai
toan cao » toan ban, toan tap
ho hieu » ho chieu, hoi hieu, nho hieu

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ho hieu lang - hanh ((trung doanh) OR (dung doanh)) chung cong manh ((toan cau) or (toan cao))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho hieu lang - hanh ((trung doanh) OR (dung doanh)) chung cong manh ((toan cau) OR (toan cao)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho hieu lang - hanh ((trung doanh) OR (dung doanh)) chung cong manh ((toan cau) or (toan cao))".
• Adding a wildcard symbol may retrieve word variants: ho hieu lang - hanh ((trung doanh) OR (dung doanh)) chung cong manh ((toan cau) or (toan cao))*.