Perhaps you should try some spelling variations:
hanh trang » thanh trung, canh tranh, hanh trinh
hieu lang » chieu sang, hieu quang, nhieu tang
cong manh » duong manh, cong thanh, hoang manh
cong danh » cuong danh, cong dan, cong thanh
hoi hieu » hoi phieu, hoi tieu, moi hieu
van dung » van dong, xay dung, tin dung
toan tap » toan ban
va dung » va duong, vat dung, va ung

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

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