Perhaps you should try some spelling variations:
hanh trang » thanh trung, canh tranh, hanh trinh
tranh luan » trinh luan, trinh luat, doanh luan
hien xanh » hien hanh, hien nhanh, chieu xanh
trang cua » tranh cua, tang cua, trung cua
dong san » cong san, dong bang, dong von
tran ban » tranh ban, tran van, toan ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc hien xanh - hanh trang cua cong dong san ((tran ban) or (tranh luan))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien xanh - hanh trang cua cong dong san ((tran ban) OR (tranh luan))*.