Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
thanh dung » thanh duong, thanh tung, thanh hung
hoc thieu » toc thieu, hoc hien
cua thong » cua thuong, cua khong, cua tong
dung cua » dung luan, dung cho
cong dan » cong san, cong tan, cong dong
than cau » toan cau, phan cau, 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 thieu xanh - thanh dung cua thong ((cong dan) or (huong dan)) than cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - thanh dung cua thong ((cong dan) OR (huong dan)) than cau.
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - thanh dung cua thong ((cong dan) or (huong dan)) than cau*.