Perhaps you should try some spelling variations:
thien thanh » tien thanh, thi thanh, hien hanh
hieu manh » chieu xanh, hieu nganh, dieu hanh
chinh tai » chinh tri
tai thong » tai thuong, tai phong, tai trong
thong dan » thong van, tuong dan, thong den
tien anh » tieng anh, tien manh, dien anh
dan toan » van toan, dan than, manh toan
toan cao » toan ban, toan tap

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((hieu manh) or (((tien anh) or (thien thanh)))) - hanh chinh tai thong thong dan toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hieu manh) OR (((tien anh) OR (thien thanh)))) - hanh chinh tai thong thong dan toan cao.
• Adding a wildcard symbol may retrieve word variants: hoc ((hieu manh) or (((tien anh) or (thien thanh)))) - hanh chinh tai thong thong dan toan cao*.