Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
tieu xanh » tieu danh, chieu xanh, tien anh
trang cua » tranh cua, trung cua, thang cua
tang cua » mang cua, hang cua, tang luan
cong san » cong tac
san toan » van toan, dan toan, manh toan
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: theo ((tieu xanh) OR (dieu hanh)) - hanh ((trang cua) or (tang cua)) nhung cong san toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((tieu xanh) OR (dieu hanh)) - hanh ((trang cua) OR (tang cua)) nhung cong san toan ban*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((tieu xanh) OR (dieu hanh)) - hanh ((trang cua) or (tang cua)) nhung cong san toan ban*".