Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
chieu tinh » lieu tinh, chau tinh, kieu tinh
hanh tranh » canh tranh, hanh trinh, hanh trang
nhung cong » dung cong, thong cong, hang cong
tranh cua » doanh cua, manh cua
cua nhung » va nhung
cong tan » cong tac, cong san, cong thanh
tan toan » tan tran, tap toan, van toan
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 ((chieu sach) or (((chieu tinh) OR (trieu tinh)))) - hanh tranh cua nhung cong tan toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu sach) OR (((chieu tinh) OR (trieu tinh)))) - hanh tranh cua nhung cong tan toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chieu sach) or (((chieu tinh) OR (trieu tinh)))) - hanh tranh cua nhung cong tan toan cau".
• Adding a wildcard symbol may retrieve word variants: theo ((chieu sach) or (((chieu tinh) OR (trieu tinh)))) - hanh tranh cua nhung cong tan toan cau*.