Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh, hieu lang
hanh tranh » canh tranh, hanh trinh, hanh trang
doi chieu » doc hieu, doi chi, ho chieu
tranh cua » doanh cua, manh cua
hang cong » dang cong, bang cong, thanh cong
hang nong » thang long, han tong
phan cam » phan cac, phan cau, khoan cam
khan ap » khan cap, han ap, khan dam

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 sang - hanh tranh cua ((hang cong) or (hang nong)) dan ((khan ap) or (phan cam))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sang - hanh tranh cua ((hang cong) OR (hang nong)) dan ((khan ap) OR (phan cam)).
• Adding a wildcard symbol may retrieve word variants: doi chieu sang - hanh tranh cua ((hang cong) or (hang nong)) dan ((khan ap) or (phan cam))*.