Perhaps you should try some spelling variations:
trang thuat » trong thuat, trang thiet, trang tuan
chieu sang » chieu sach, chieu xanh, hieu lang
trang thuc » trang phuc, trong thuc, tran thuy
doi chieu » doc hieu, doi chi, ho chieu
xung cong » xuong cong, dung cong, luong cong
manh toan » thanh toan, anh tuan

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 - thanh ((trang thuat) OR (trang thuc)) xung cong ((manh toan) or (tinh toan)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sang - thanh ((trang thuat) OR (trang thuc)) xung cong ((manh toan) OR (tinh toan)) cau*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chieu sang - thanh ((trang thuat) OR (trang thuc)) xung cong ((manh toan) or (tinh toan)) cau*".