Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, thien anh, thien danh
cang thang » cong thanh, dang thanh
hieu manh » chieu xanh, hieu nganh, dieu hanh
hanh manh » hanh mang, lanh manh, hoang manh
cong cang » cong cong, cong lang, cong vang
thang cau » hang cau, thong cau, thanh chau

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 xanh) OR (hieu manh)) - hanh manh ((cua nhung) or (va nhung)) cong cang thang cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thieu xanh) OR (hieu manh)) - hanh manh ((cua nhung) OR (va nhung)) cong cang thang cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((thieu xanh) OR (hieu manh)) - hanh manh ((cua nhung) or (va nhung)) cong cang thang cau".
• Adding a wildcard symbol may retrieve word variants: hoc ((thieu xanh) OR (hieu manh)) - hanh manh ((cua nhung) or (va nhung)) cong cang thang cau*.