Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
cong thanh » dong thanh, cong trinh, cong tan
thanh nhan » thanh phan, thanh san, thanh toan
hoc chieu » hoc thieu, ho chieu, hoc hien
hanh nhan » danh nhan, anh nhan, hanh han
va thong » va thuong, va phuong, va cong
nhan tap » nhan tai, nhan tao, han 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 chieu xanh - hanh nhan ((va thong) or (he thong)) cong thanh nhan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chieu xanh - hanh nhan ((va thong) OR (he thong)) cong thanh nhan tap*.