Perhaps you should try some spelling variations:
chiet tach » chieu sach
chieu xanh » chieu sach, chieu sang, chieu tinh
nhung cong » dung cong, thong cong, hang cong
hieu manh » hieu nganh, dieu hanh, hien hanh
tranh va » tranh van, trang va, trinh va
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh 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 ((chiet tach) or (((hieu manh) OR (chieu xanh)))) - canh tranh va nhung cong dan toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chiet tach) OR (((hieu manh) OR (chieu xanh)))) - canh tranh va nhung cong dan toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chiet tach) or (((hieu manh) OR (chieu xanh)))) - canh tranh va nhung cong dan toan cau".
• Adding a wildcard symbol may retrieve word variants: theo ((chiet tach) or (((hieu manh) OR (chieu xanh)))) - canh tranh va nhung cong dan toan cau*.