Perhaps you should try some spelling variations:
chieu tinh » trieu tinh, lieu tinh, chau tinh
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
tai cac » tai cuc
cac thu » cach thuc, cac thoi

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((chieu tinh) or (chieu sach)) - canh tranh cua ((nhung cong) or (hang cong)) tai cac thu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu tinh) OR (chieu sach)) - canh tranh cua ((nhung cong) OR (hang cong)) tai cac thu.
• Adding a wildcard symbol may retrieve word variants: ho ((chieu tinh) or (chieu sach)) - canh tranh cua ((nhung cong) or (hang cong)) tai cac thu*.