Perhaps you should try some spelling variations:
lieu tinh » trieu tinh, diep tinh, bien tinh
canh manh » lanh manh, canh tranh, cach mang
cua khong » hua khong, cua phuong, cua thuong
manh cua » doanh cua, ban cua
tong tap » tuong tac, trong tan, tong hop
cong tac » cong ty
toan tap » toan 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 manh cua khong ((tong tap) OR (cong tac)) toan tap~.
• Adding a wildcard symbol may retrieve word variants: ho lieu tinh - canh manh cua khong ((tong tap) or (cong tac)) toan tap*.