Perhaps you should try some spelling variations:
doanh chung » doanh nhung, doanh thuong, doan hung
trung doanh » trong doanh, trung thanh, dung doanh
chung duong » chuong duong, phuong duong, hung vuong
hanh trung » thanh trung, hanh trang, manh trung
nhieu tang » chieu sang, nhiet nang
duong manh » duong van
hieu lang » chieu sang, hieu quang, hieu van
toan cau » toan ban, toan tap, toan tai
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: ho ((hieu lang) OR (nhieu tang)) - hanh trung doanh chung duong manh ((toan cau) or (toan cao))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((hieu lang) OR (nhieu tang)) - hanh trung doanh chung duong manh ((toan cau) OR (toan cao)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((hieu lang) OR (nhieu tang)) - hanh trung doanh chung duong manh ((toan cau) or (toan cao))".
• Adding a wildcard symbol may retrieve word variants: ho ((hieu lang) OR (nhieu tang)) - hanh trung doanh chung duong manh ((toan cau) or (toan cao))*.