Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
chieu sang » chieu sach, chieu xanh, hieu lang
hoc chieu » hoc thieu, ho chieu, hoc hien
doanh cua » doanh luan
manh toan » thanh toan, anh tuan, tinh toan
hang cua » mang cua, hang ca, huong cua
ban hang » ngan hang

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc chieu sang - hanh ((hang cua) or (doanh cua)) nhung cong ((manh toan) or (ban hang)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chieu sang - hanh ((hang cua) OR (doanh cua)) nhung cong ((manh toan) OR (ban hang)) cau.
• Adding a wildcard symbol may retrieve word variants: hoc chieu sang - hanh ((hang cua) or (doanh cua)) nhung cong ((manh toan) or (ban hang)) cau*.