Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
chieu sach » chinh sach, chiet tach, chieu sang
nhung cong » dung cong, thong cong, nhung don
tranh cua » doanh cua, manh cua
hang cong » dang cong, hang nong, bang cong
phan cau » phan cac, phan tu, phan lap
phan dau » phan tu, hang dau

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 - canh tranh cua ((nhung cong) or (hang cong)) dan ((phan cau) or (phan dau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu sach - canh tranh cua ((nhung cong) OR (hang cong)) dan ((phan cau) OR (phan dau)).
• Adding a wildcard symbol may retrieve word variants: theo chieu sach - canh tranh cua ((nhung cong) or (hang cong)) dan ((phan cau) or (phan dau))*.