Perhaps you should try some spelling variations:
thien thanh » tien thanh, thi thanh, hien hanh
thanh trung » thanh tung
thong tuong » thong thuong, thong thong, thong duong
thieu xanh » chieu xanh, hieu manh, thien anh
tam thong » tam thuong, tao thong, nam thong
tuong den » huong den, tuong dan, thong den
den than » den thanh, dien than, dan than
than cau » toan cau, phan cau, 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 thanh)) - thanh trung tam thong tuong den than cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thieu xanh) OR (thien thanh)) - thanh trung tam thong tuong den than cau*.