Perhaps you should try some spelling variations:
cong huong » cong thuong, cong hung, dong huong
chieu xanh » chieu sach, chieu sang, chieu tinh
cong luong » cong thuong, nang luong, cong dong
hieu manh » hieu nganh, dieu hanh, hien hanh
hanh tang » hanh trang, anh tang, hanh mang
tang cua » mang cua, hang cua, tang luan
dan toan » van toan, dan than, manh toan
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 manh) or (chieu xanh)) - hanh tang cua ((cong huong) OR (cong luong)) dan toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((hieu manh) OR (chieu xanh)) - hanh tang cua ((cong huong) OR (cong luong)) dan toan cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((hieu manh) or (chieu xanh)) - hanh tang cua ((cong huong) OR (cong luong)) dan toan cao".
• Adding a wildcard symbol may retrieve word variants: theo ((hieu manh) or (chieu xanh)) - hanh tang cua ((cong huong) OR (cong luong)) dan toan cao*.