Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
cong ngang » cong quang, cong lang, cong nong
cong nhan » cong nhat, cong thanh, cong san
thanh cac » hanh cac, thanh bac, thanh ca
ho chieu » theo chieu, hoc thieu, doi chieu
cua dung » cua dang, qua dung, cua rung
cua dong » chua dong, cua cong, cua dang

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho chieu xanh - canh tranh ((cua dung) or (cua dong)) ((cong ngang) OR (cong nhan)) thanh cac~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu xanh - canh tranh ((cua dung) OR (cua dong)) ((cong ngang) OR (cong nhan)) thanh cac.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu xanh - canh tranh ((cua dung) or (cua dong)) ((cong ngang) OR (cong nhan)) thanh cac".
• Adding a wildcard symbol may retrieve word variants: ho chieu xanh - canh tranh ((cua dung) or (cua dong)) ((cong ngang) OR (cong nhan)) thanh cac*.