Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
lieu tinh » trieu tinh, diep tinh, bien tinh
tranh cua » manh cua
doanh cua » doanh luan
cong dan » cong san, cong tan, huong dan
toan ban » van ban
ho lieu » so lieu, co lieu, ho kieu

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ho lieu tinh - canh ((tranh cua) OR (doanh cua)) nhung cong dan ((toan tap) OR (toan ban))~.
• Adding a wildcard symbol may retrieve word variants: ho lieu tinh - canh ((tranh cua) or (doanh cua)) nhung cong dan ((toan tap) or (toan ban))*.