Perhaps you should try some spelling variations:
trung tuan » trung thanh, trung tam, tran tuan
cong quang » luong quang, thong quang, duong quang
quang phan » quang chan, quang phat, quang thanh
doi chieu » doc hieu, ho chieu, mot chieu
trung cua » truong cua, trung cap, dung cua
hang cong » dang cong, hang nong, bang cong
doi chi » doi khi

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