Perhaps you should try some spelling variations:
hien nganh » vien nganh, hien nhanh, hieu nganh
luan thong » luan phong, luat thong, xuan thong
luan tuong » luan luong, luat thuong, xuan truong
anh dung » anh dong, anh huong, sach dung
cong dan » cong san, cong tan, huong dan
dan than » dan chan, ban than, van than
than man » than ma, thanh san, tran manh

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc hien nganh - anh dung ((luan thong) OR (luan tuong)) cong dan than man~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc hien nganh - anh dung ((luan thong) OR (luan tuong)) cong dan than man*".