Perhaps you should try some spelling variations:
chieu sach » chinh sach, chieu sang, chieu xanh
hanh tranh » canh tranh, hanh trinh, hanh trang
tranh cua » doanh cua, manh cua
cong cong » cong dong, trong cong, dung cong
cong tan » cong tac, cong san, cong thanh
toan cau » toan cao, toan ban, toan tai
toan tap » toan ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((chiet tach) OR (chieu sach)) - hanh tranh cua cong cong tan ((toan cau) or (toan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chiet tach) OR (chieu sach)) - hanh tranh cua cong cong tan ((toan cau) OR (toan tap)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chiet tach) OR (chieu sach)) - hanh tranh cua cong cong tan ((toan cau) or (toan tap))".
• Adding a wildcard symbol may retrieve word variants: ho ((chiet tach) OR (chieu sach)) - hanh tranh cua cong cong tan ((toan cau) or (toan tap))*.