Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien danh
nhung cong » dung cong, thong cong, hang cong
cong ngang » cong nhan, cong quang, cong lang
thien anh » thien danh, tien anh, thien thanh
hanh tang » hanh trang, anh tang, hanh mang
cua nhung » va nhung
quang cao » nang cao, quang nam
quang cua » quan cua, quang tuan, quang huy
tang cua » mang cua, hang cua, tang luan

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