Perhaps you should try some spelling variations:
thien danh » thien dang, thien thanh, thien chanh
thieu xanh » chieu xanh, hieu manh
hanh trinh » canh tranh, hanh chinh
thien anh » tien anh, thien thanh, thien chanh
trinh cua » tinh cua, trinh luat, trinh quan
dung cong » dung trong
cua dung » cua dang, cua dong, qua dung
cong dan » cong san, cong tan, huong dan
dan chan » dan gian, dan ca, van chat
chan cao » chan cho, chat cao, chay cao

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) or (((thien anh) or (thien danh)))) - hanh trinh cua dung cong dan chan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thieu xanh) OR (((thien anh) OR (thien danh)))) - hanh trinh cua dung cong dan chan cao*.