Perhaps you should try some spelling variations:
thanh trung » thanh tung
thong cong » trong cong, tong cong, thong thong
tieu xanh » tieu danh, chieu xanh, dieu hanh
trung dai » truong dai, truong dao, trung tam
bang cong » dang cong, bang song, hang cong
dan than » dan chan, ban than, van 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: theo tieu xanh - thanh trung dai ((bang cong) or (thong cong)) dan than cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu xanh - thanh trung dai ((bang cong) OR (thong cong)) dan than cau*.