Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
hanh tranh » canh tranh, hanh trinh, hanh trang
doi chieu » doc hieu, doi chi, ho chieu
tranh cua » doanh cua, manh cua
dang cong » dung cong
bang song » nang song
dan than » dan chan, ban than, van than
than tap » toan tap, han tap, phan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi chieu xanh - hanh tranh cua ((dang cong) or (bang song)) dan than tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu xanh - hanh tranh cua ((dang cong) OR (bang song)) dan than tap*.