Perhaps you should try some spelling variations:
thien thanh » tien thanh, thi thanh, hien hanh
phuong cong » phuong dong, phong cong, phung cong
thien danh » thien anh, thien dang, thien chanh
chieu xanh » chieu sach, chieu sang, chieu tinh
hanh hang » thanh hang, hang hang, hanh han
va phuong » va thuong, cac phuong
cong san » cong tac
san tuan » van tuan, san luan, san quan
tuan tap » toan tap, tuan tai, tuyen tap

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 danh) or (thien thanh))) or (chieu xanh)) - hanh hang va phuong cong san tuan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((((thien danh) OR (thien thanh))) OR (chieu xanh)) - hanh hang va phuong cong san tuan tap.
• Adding a wildcard symbol may retrieve word variants: hoc ((((thien danh) or (thien thanh))) or (chieu xanh)) - hanh hang va phuong cong san tuan tap*.