Perhaps you should try some spelling variations:
trung tuan » trung thanh, trung tam, tran tuan
nhung cong » dung cong, thong cong, hang cong
theo dien » theo tieu, thu dien, thuy dien
dien sach » dien anh
trung cua » truong cua, trung cap, dung cua
dan than » ban than, van than, dan toan
dan chan » dan gian, dan ca, van chat

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo dien sach - thanh ((trung cua) OR (trung tuan)) nhung cong ((dan than) or (dan chan)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo dien sach - thanh ((trung cua) OR (trung tuan)) nhung cong ((dan than) OR (dan chan)) cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo dien sach - thanh ((trung cua) OR (trung tuan)) nhung cong ((dan than) or (dan chan)) cau".
• Adding a wildcard symbol may retrieve word variants: theo dien sach - thanh ((trung cua) OR (trung tuan)) nhung cong ((dan than) or (dan chan)) cau*.