Perhaps you should try some spelling variations:
chiet tach » chieu sach
hanh tranh » canh tranh, hanh trinh, hanh trang
nhung cong » dung cong, thong cong, nhung don
doi chiet » doi chieu, doi chi, doi viet
tranh cua » doanh cua, manh cua
hang cong » dang cong, hang nong, bang cong
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: doi chiet tach - hanh tranh cua ((nhung cong) or (hang cong)) dan toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chiet tach - hanh tranh cua ((nhung cong) OR (hang cong)) dan toan cau.
• Adding a wildcard symbol may retrieve word variants: doi chiet tach - hanh tranh cua ((nhung cong) or (hang cong)) dan toan cau*.