Perhaps you should try some spelling variations:
nhung tuong » nhung huong, nhung phuong, hung vuong
chieu sach » chinh sach, chiet tach, chieu sang
hanh tranh » canh tranh, hanh trinh, hanh trang
tranh cua » doanh cua, manh cua
dung cong » dung trong
toan hang » toan thang, toan hanh, toan mang
ho chieu » theo chieu, hoc thieu, doi chieu
hang dau » hang va, hang tai

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho chieu sach - hanh tranh cua ((nhung tuong) or (dung cong)) toan hang dau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - hanh tranh cua ((nhung tuong) OR (dung cong)) toan hang dau.
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - hanh tranh cua ((nhung tuong) or (dung cong)) toan hang dau*.