Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
trinh luan » trinh luat, trinh quan, trinh han
phuong ban » phuong bang, phuong lan, phong ban
phuong bac » phuong cach, phuong tay, phuong mai
ho chieu » theo chieu, hoc thieu, doi chieu
tinh cua » trinh cua, sinh cua, tinh chat
hanh san » thanh san, khach san, thanh son

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho chieu xanh - hanh ((trinh luan) or (tinh cua)) dong ((phuong ban) OR (phuong bac)) hanh san~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu xanh - hanh ((trinh luan) OR (tinh cua)) dong ((phuong ban) OR (phuong bac)) hanh san*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu xanh - hanh ((trinh luan) or (tinh cua)) dong ((phuong ban) OR (phuong bac)) hanh san*".