Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
thanh dinh » thanh binh, thanh tinh, thanh kinh
thanh vinh » thanh binh, thanh tinh, than kinh
cong thanh » dong thanh, cong trinh, cong tan
hoc thieu » toc thieu, hoc hien
cuu nhung » cua nhung, cuu phuong, chua nhung
cong dan » cong san, cong tan, huong dan
toan tap » toan ban

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 dinh) OR (thanh vinh)) cuu nhung ((cong dan) or (cong thanh)) toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - ((thanh dinh) OR (thanh vinh)) cuu nhung ((cong dan) OR (cong thanh)) toan tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu xanh - ((thanh dinh) OR (thanh vinh)) cuu nhung ((cong dan) or (cong thanh)) toan tap".
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - ((thanh dinh) OR (thanh vinh)) cuu nhung ((cong dan) or (cong thanh)) toan tap*.