Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
nhung cong » dung cong, thong cong, hang cong
viet nang » viet hoang, viet trang, viet nam
hanh tang » hanh trang, anh tang, hanh mang
cua nhung » va nhung
cong nam » dong nam, uong nam, thong nam
nam toan » nam tan, tam toan, nam thanh
toan cau » toan cao, toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((viet nang) or (chieu sach)) - ((hanh tang) or (canh tranh)) cua nhung cong nam toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((viet nang) OR (chieu sach)) - ((hanh tang) OR (canh tranh)) cua nhung cong nam toan cau.
• Adding a wildcard symbol may retrieve word variants: theo ((viet nang) or (chieu sach)) - ((hanh tang) or (canh tranh)) cua nhung cong nam toan cau*.