Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
thien danh » thien dang, thien thanh, thien chanh
hanh tranh » canh tranh, hanh trinh, hanh trang
thong cong » trong cong, tong cong, thong thong
thien anh » tien anh, thien thanh, thien chanh
tranh cua » doanh cua, manh cua
cua thong » cua thuong, cua khong, cua tong
cong dan » cong san, cong tan, huong dan
dan van » dang van, doan van, dao van

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((((thien anh) or (chieu xanh))) or (thien danh)) - hanh tranh cua thong cong dan van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((((thien anh) OR (chieu xanh))) OR (thien danh)) - hanh tranh cua thong cong dan van ban.
• Adding a wildcard symbol may retrieve word variants: hoc ((((thien anh) or (chieu xanh))) or (thien danh)) - hanh tranh cua thong cong dan van ban*.