Perhaps you should try some spelling variations:
chieu tinh » trieu tinh, lieu tinh, chau tinh
chieu sach » chinh sach, chiet tach, chieu sang
trung tuan » trung thanh, trung tam, tran tuan
trung cua » truong cua, trung cap, dung cua
hang cong » dang cong, hang nong, bang cong
cong san » cong tac
san van » tan van, luan van, tran van

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)) - manh ((trung cua) OR (trung tuan)) hang cong san van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu tinh) OR (chieu sach)) - manh ((trung cua) OR (trung tuan)) hang cong san van ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu tinh) or (chieu sach)) - manh ((trung cua) OR (trung tuan)) hang cong san van ban".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu tinh) or (chieu sach)) - manh ((trung cua) OR (trung tuan)) hang cong san van ban*.