Perhaps you should try some spelling variations:
thuong cong » thong cong, thuong con, thuong dong
chieu sang » chieu sach, chieu xanh, hieu lang
doi chieu » doc hieu, doi chi, ho chieu
than cua » thai cua, ban cua, gian cua
nhan cua » nhat cua, nhan luc, nhan su
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh toan
toan cau » toan cao, toan ban, toan 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 sang - doanh ((than cua) or (nhan cua)) thuong cong dan toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sang - doanh ((than cua) OR (nhan cua)) thuong cong dan toan cau.
• Adding a wildcard symbol may retrieve word variants: doi chieu sang - doanh ((than cua) or (nhan cua)) thuong cong dan toan cau*.