Perhaps you should try some spelling variations:
toan nhuong » toan thuong, toan thong, doan phuong
chieu sang » chieu sach, chieu xanh, hieu lang
hanh tinh » hanh trinh, nhanh tinh, thanh tinh
ho chieu » theo chieu, hoc thieu, doi chieu
cong tan » cong tac, cong thanh, cong ty
cong san » cong tac
toan ban » van ban

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 sang - hanh tinh toan nhuong ((cong tan) OR (cong san)) toan ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu sang - hanh tinh toan nhuong ((cong tan) OR (cong san)) toan ban".
• Adding a wildcard symbol may retrieve word variants: ho chieu sang - hanh tinh toan nhuong ((cong tan) OR (cong san)) toan ban*.