Perhaps you should try some spelling variations:
chieu tinh » trieu tinh, lieu tinh, chau tinh
chieu sach » chinh sach, chiet tach, chieu sang
cua trung » cua truong, xuan trung, cua nhung
cong can » cong san, cong tan, cong dan
can chan » dan chan, cam chan, ban chan
chan cac » phan cac, chon cac, nhan cach

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)) - thanh cong ((cua trung) or (va nhung)) cong can chan cac~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu tinh) OR (chieu sach)) - thanh cong ((cua trung) OR (va nhung)) cong can chan cac.
• Adding a wildcard symbol may retrieve word variants: ho ((chieu tinh) or (chieu sach)) - thanh cong ((cua trung) or (va nhung)) cong can chan cac*.