Perhaps you should try some spelling variations:
thieu manh » hieu manh, trieu minh, chieu xanh
tien manh » tien anh, tien thanh, tieng anh
hanh tang » hanh trang, anh tang, hanh mang
cua trong » cua truong, cua trung, qua trong
tang cua » mang cua, hang cua, tang luan
cong tan » cong tac, cong san, cong thanh
tan chan » dan chan, ban chan, can chan
chan cao » chan cho, chat cao, chay cao

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 (tien manh)) - hanh tang cua trong cong tan chan cao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((thieu manh) OR (tien manh)) - hanh tang cua trong cong tan chan cao".
• Adding a wildcard symbol may retrieve word variants: hoc ((thieu manh) OR (tien manh)) - hanh tang cua trong cong tan chan cao*.