Perhaps you should try some spelling variations:
luan trong » quan trong, luat trong, luan tuong
hanh tang » hanh trang, anh tang, hanh mang
tang luan » dung luan
cong manh » cong danh, duong manh, cong thanh
theo chu » theo chieu, cho chu, chao chu
chu xanh » chu manh, chieu xanh, chua xang
cong san » cong tac
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.

• If you are trying to use Boolean operators, they must be ALL CAPS: theo chu xanh - hanh tang luan trong ((cong manh) OR (cong san)) ((toan cau) OR (toan cao))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chu xanh - hanh tang luan trong ((cong manh) or (cong san)) ((toan cau) OR (toan cao))~".
• Adding a wildcard symbol may retrieve word variants: theo chu xanh - hanh tang luan trong ((cong manh) or (cong san)) ((toan cau) OR (toan cao))*.