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 dan » dang dan, ban dan, dao dan
dan dat » dung dat, dong dat, dinh 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 dan dat~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thieu manh) OR (tieng anh)) - hanh tang luan cong cong dan dan dat*.