Perhaps you should try some spelling variations:
tien thanh » tien thinh, tran thanh, den thanh
nhung cong » dung cong, thong cong, hang cong
tien hanh » hien hanh, tien anh, tien manh
thanh hoa » thanh pho
thanh hai » thanh phan, thanh san
cong tan » cong tac, cong san, cong thanh
tan toan » tan tran, tap toan, van 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: theo ((tien hanh) OR (tien thanh)) - nhanh ((thanh hoa) or (thanh hai)) nhung cong tan toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((tien hanh) OR (tien thanh)) - nhanh ((thanh hoa) OR (thanh hai)) nhung cong tan toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((tien hanh) OR (tien thanh)) - nhanh ((thanh hoa) or (thanh hai)) nhung cong tan toan cau".
• Adding a wildcard symbol may retrieve word variants: theo ((tien hanh) OR (tien thanh)) - nhanh ((thanh hoa) or (thanh hai)) nhung cong tan toan cau*.