Perhaps you should try some spelling variations:
nhieu tang » chieu sang, nhiet nang
chuan dong » chua dong, chuan long, chuyen dong
dong duong » tuong duong, cuong duong, dong thong
duong manh » duong van
hieu lang » chieu sang, hieu quang, hieu van
phan dong » phan dang, phan hong, phan song
phan cong » thanh cong
manh toan » thanh toan, anh tuan, tinh 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: ho ((hieu lang) or (nhieu tang)) - ((phan dong) OR (phan cong)) chuan dong duong manh toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((hieu lang) OR (nhieu tang)) - ((phan dong) OR (phan cong)) chuan dong duong manh toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((hieu lang) or (nhieu tang)) - ((phan dong) OR (phan cong)) chuan dong duong manh toan cau".
• Adding a wildcard symbol may retrieve word variants: ho ((hieu lang) or (nhieu tang)) - ((phan dong) OR (phan cong)) chuan dong duong manh toan cau*.