Perhaps you should try some spelling variations:
thong cong » trong cong, tong cong, thong thong
cua thong » cua thuong, cua khong, cua tong
hoc vien » hoc viet, hoc vi
cong dan » cong san, cong tan, huong dan
dan than » dan chan, ban than, van than
than man » than ma, thanh san, tran manh
anh ban » anh bang, anh bai, anh van
ban cua » ban quan

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ((((hoc vien) OR (hoc tieng))) OR (hoc hien)) nganh - anh ban cua thong cong dan than man~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((hoc vien) OR (hoc tieng))) or (hoc hien)) nganh - anh ban cua thong cong dan than man~".
• Adding a wildcard symbol may retrieve word variants: ((((hoc vien) OR (hoc tieng))) or (hoc hien)) nganh - anh ban cua thong cong dan than man*.