Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh
thien danh » thien dang, thien thanh, thien chanh
hanh trinh » canh tranh, hanh chinh
thien anh » tien anh, thien thanh, thien chanh
trinh cua » tinh cua, trinh luat, trinh quan
cong cong » cong dong, trong cong, dung cong
cong dan » cong san, cong tan, huong dan
dan than » dan chan, ban than, van than
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 ((((thieu xanh) OR (thien danh))) or (thien anh)) - hanh trinh cua cong cong dan than cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((((thieu xanh) OR (thien danh))) OR (thien anh)) - hanh trinh cua cong cong dan than cao*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((((thieu xanh) OR (thien danh))) or (thien anh)) - hanh trinh cua cong cong dan than cao*".