Perhaps you should try some spelling variations:
cong thanh » dong thanh, cong trinh, cong tan
chua xang » chua nang, chuc nang, chu bang
hanh tang » hanh trang, anh tang, hanh mang
cua nhung » va nhung
chu xanh » chu manh, chieu xanh, chuc danh
tang cua » mang cua, hang cua, tang luan
toan tap » toan ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((chu xanh) OR (chua xang)) - hanh tang cua nhung ((huong dan) or (cong thanh)) toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chu xanh) OR (chua xang)) - hanh tang cua nhung ((huong dan) OR (cong thanh)) toan tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chu xanh) OR (chua xang)) - hanh tang cua nhung ((huong dan) or (cong thanh)) toan tap".
• Adding a wildcard symbol may retrieve word variants: theo ((chu xanh) OR (chua xang)) - hanh tang cua nhung ((huong dan) or (cong thanh)) toan tap*.