Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
trinh quan » tinh quang, trinh luat, trinh han
hoc chieu » hoc thieu, ho chieu, hoc hien
tinh cua » trinh cua, sinh cua, tinh chat
cong dan » cong tan, huong dan, cong dong
cong san » cong tac
than cao » toan cao, thai cao, than cap

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc chieu xanh - hanh ((trinh quan) or (tinh cua)) dung ((cong dan) or (cong san)) than cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chieu xanh - hanh ((trinh quan) OR (tinh cua)) dung ((cong dan) OR (cong san)) than cao.
• Adding a wildcard symbol may retrieve word variants: hoc chieu xanh - hanh ((trinh quan) or (tinh cua)) dung ((cong dan) or (cong san)) than cao*.