Perhaps you should try some spelling variations:
thong cong » trong cong, tong cong, thong thong
tien manh » tien anh, tien thanh, tran manh
cua thong » cua thuong, cua khong, cua tong
anh tang » anh dang, anh nang, anh sang
anh bang » anh hoang, anh quang, tinh bang
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh toan
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 ((tien manh) or (tieng anh)) - ((anh tang) OR (anh bang)) cua thong cong dan toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((tien manh) OR (tieng anh)) - ((anh tang) OR (anh bang)) cua thong cong dan toan cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((tien manh) or (tieng anh)) - ((anh tang) OR (anh bang)) cua thong cong dan toan cao".
• Adding a wildcard symbol may retrieve word variants: hoc ((tien manh) or (tieng anh)) - ((anh tang) OR (anh bang)) cua thong cong dan toan cao*.