Perhaps you should try some spelling variations:
tieng thanh » tien thanh, tieng han, tien thinh
nhung cong » thong cong, hang cong, nhung don
thanh hoa » thanh pho
dung cong » dung trong
danh toan » manh toan, anh toan, dan toan
hoa tuan » hoa thuan, hoa luan, hoa quan
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 ((tieng thanh) OR (tieng anh)) - thanh hoa tuan ((nhung cong) or (dung cong)) danh toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((tieng thanh) OR (tieng anh)) - thanh hoa tuan ((nhung cong) OR (dung cong)) danh toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((tieng thanh) OR (tieng anh)) - thanh hoa tuan ((nhung cong) or (dung cong)) danh toan cau".
• Adding a wildcard symbol may retrieve word variants: hoc ((tieng thanh) OR (tieng anh)) - thanh hoa tuan ((nhung cong) or (dung cong)) danh toan cau*.