Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
trinh quan » tinh quang, trinh luat, trinh han
doi chieu » doc hieu, doi chi, ho chieu
trinh cua » tinh cua, trinh luat, trinh luan
nhung ong » nhung cong, nhung bong, nhung chong
ong sach » cong sach, song sach, duong sach

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi chieu xanh - hanh ((trinh cua) or (trinh quan)) nhung ong sach ((toan ban) or (van ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu xanh - hanh ((trinh cua) OR (trinh quan)) nhung ong sach ((toan ban) OR (van ban)).
• Adding a wildcard symbol may retrieve word variants: doi chieu xanh - hanh ((trinh cua) or (trinh quan)) nhung ong sach ((toan ban) or (van ban))*.