Perhaps you should try some spelling variations:
cong thanh » dong thanh, cong trinh, truong thanh
hanh mang » nhanh mang, hanh trang, nhanh lang
mang luan » tang luan, hang luan, bang luan
luan danh » luan thanh, luan van, luan nang
theo yeu » theo tieu, thiet yeu, theo chu
ho chieu » theo chieu, hoc thieu, doi chieu
cong tan » cong tac, cong san, cong ty
toan ban » van ban

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 yeu) OR (ho chieu)) xanh - hanh mang luan danh ((cong thanh) OR (cong tan)) toan ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((theo yeu) or (ho chieu)) xanh - hanh mang luan danh ((cong thanh) OR (cong tan)) toan ban~".
• Adding a wildcard symbol may retrieve word variants: ((theo yeu) or (ho chieu)) xanh - hanh mang luan danh ((cong thanh) OR (cong tan)) toan ban*.