Perhaps you should try some spelling variations:
nhung chong » nhung cong, nhung phong, nhung phuong
toan thiet » hoan thien, luan thiet, toan tien
thiet tach » chiet tach, thien hach, thuat tach
hanh tranh » canh tranh, hanh trinh, hanh trang
chong quan » thong quan, cuong quan, hong quan
tranh cua » doanh cua, manh cua
cua nhung » va nhung
quan van » luan van, quan va, quan luan

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

• Performing a fuzzy search may retrieve terms with similar spellings: toan thiet tach - hanh tranh cua nhung chong quan van ban~.
• Adding a wildcard symbol may retrieve word variants: toan thiet tach - hanh tranh cua nhung chong quan van ban*.