Perhaps you should try some spelling variations:
thanh trung » thanh tung
trung tran » trung tuan, trung thanh, trung tam
thien anh » thien danh, tien anh, thien thanh
tien manh » tien anh, tien thanh, tieng anh
tran dung » tran dang, tran hung, tran quang
dung cong » dung trong
cong manh » cong danh, duong manh, cong thanh
manh toan » thanh toan, anh tuan, tinh toan
toan cau » 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 ((thien anh) or (tien manh)) - thanh trung tran dung cong manh toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thien anh) OR (tien manh)) - thanh trung tran dung cong manh toan cau.
• Adding a wildcard symbol may retrieve word variants: hoc ((thien anh) or (tien manh)) - thanh trung tran dung cong manh toan cau*.