Perhaps you should try some spelling variations:
chieu tinh » trieu tinh, lieu tinh, chau tinh
trung tuan » trung thanh, trung tam, tran tuan
doi chieu » doc hieu, doi chi, ho chieu
trung cua » truong cua, trung cap, dung cua
dung cong » dung trong
cong san » cong tac
toan cao » toan tap
toan ban » van ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi chieu tinh - thanh ((trung cua) or (trung tuan)) dung cong san ((toan cao) OR (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu tinh - thanh ((trung cua) OR (trung tuan)) dung cong san ((toan cao) OR (toan ban)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chieu tinh - thanh ((trung cua) or (trung tuan)) dung cong san ((toan cao) OR (toan ban))".
• Adding a wildcard symbol may retrieve word variants: doi chieu tinh - thanh ((trung cua) or (trung tuan)) dung cong san ((toan cao) OR (toan ban))*.