Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
tranh cua » doanh cua
manh cua » doanh cua, ban cua
cong dan » cong san, cong tan, huong dan
dan phan » doan phan, dan chan, van phan
ho lieu » so lieu, ho kieu, ho chieu
co lieu » cot lieu, co hieu, so lieu

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) OR (co lieu)) tinh - canh ((tranh cua) OR (manh cua)) nhung cong dan phan tu~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho lieu) OR (co lieu)) tinh - canh ((tranh cua) or (manh cua)) nhung cong dan phan tu~".
• Adding a wildcard symbol may retrieve word variants: ((ho lieu) OR (co lieu)) tinh - canh ((tranh cua) or (manh cua)) nhung cong dan phan tu*.