Perhaps you should try some spelling variations:
thieu manh » hieu manh, tien manh, trieu minh
hanh tang » hanh trang, anh tang, hanh mang
tang luan » dung luan
luan cong » luat cong, luong cong, luan chung
cong cong » cong dong, trong cong, dung cong
cong dan » cong san, cong tan, huong dan
dan van » dang van, doan van, dao van
van dat » van dao, van dau, dan dat

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((thieu manh) OR (tieng anh)) - hanh tang luan cong cong dan van dat~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((thieu manh) OR (tieng anh)) - hanh tang luan cong cong dan van dat*".