Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh
thien danh » thien dang, thien thanh, thien chanh
hanh tranh » canh tranh, hanh trinh, hanh trang
tranh chuc » tranh chua, tranh cua, trang phuc
thien anh » tien anh, thien thanh, thien chanh
nang cong » nang song, dang cong, bang cong
cong san » cong tac
san than » sang than, san thanh, ban than
than cau » toan cau, phan cau, than cap

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