Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
thieu sang » chieu sang, thieu khang, thieu quang
hoc thieu » toc thieu, hoc hien
tranh cua » doanh cua, manh cua
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 thieu sang - hanh ((hang cua) or (tranh cua)) nhung cong ((manh toan) or (ban hang)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu sang - hanh ((hang cua) OR (tranh cua)) nhung cong ((manh toan) OR (ban hang)) cau.
• Adding a wildcard symbol may retrieve word variants: hoc thieu sang - hanh ((hang cua) or (tranh cua)) nhung cong ((manh toan) or (ban hang)) cau*.