Perhaps you should try some spelling variations:
thanh trung » thanh tung
thieu manh » tien manh, trieu minh, chieu xanh
dung thang » hung thang, cung thang, dung thuong
hieu manh » chieu xanh, hieu nganh, dieu hanh
phuc toan » phuc thanh, duc toan, phuc tap
phap toan » phap hoan, phap luan, phap phan
tam dung » tam duong, tac dung, tan dung

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc ((thieu manh) OR (hieu manh)) - thanh trung tam dung thang ((phuc toan) or (phap toan)) cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc ((thieu manh) OR (hieu manh)) - thanh trung tam dung thang ((phuc toan) OR (phap toan)) cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc ((thieu manh) OR (hieu manh)) - thanh trung tam dung thang ((phuc toan) or (phap toan)) cao".
• Adding a wildcard symbol may retrieve word variants: toc ((thieu manh) OR (hieu manh)) - thanh trung tam dung thang ((phuc toan) or (phap toan)) cao*.