Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
dung thanh » duong thanh, dong thanh, dang thanh
hien hanh » dieu hanh
chinh tai » chinh tri
tai trong » tai truong, tai trung, tai cong
cong dung » cuong dung, cong dong, cong luong
thanh cau » thanh chau, thanh mau, nhanh cau
tien anh » tieng anh, tien manh, dien anh

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 (tien anh))) or (hien hanh)) - hanh chinh tai trong cong dung thanh cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((((thieu xanh) OR (tien anh))) OR (hien hanh)) - hanh chinh tai trong cong dung thanh cau.
• Adding a wildcard symbol may retrieve word variants: hoc ((((thieu xanh) or (tien anh))) or (hien hanh)) - hanh chinh tai trong cong dung thanh cau*.