Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
hanh tranh » canh tranh, hanh trinh, hanh trang
cua nhung » va nhung
hach toan » thanh toan, manh toan
chu tinh » chau tinh, chua tinh, cuu tinh
tac toan » tap toan, tam toan, tich toan
ho chu » hoi chu, cho chu, ho chua

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho chu tinh - ((hanh tranh) or (hanh chinh)) cua nhung cong ((tac toan) or (hach toan)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chu tinh - ((hanh tranh) OR (hanh chinh)) cua nhung cong ((tac toan) OR (hach toan)) cau.
• Adding a wildcard symbol may retrieve word variants: ho chu tinh - ((hanh tranh) or (hanh chinh)) cua nhung cong ((tac toan) or (hach toan)) cau*.