Perhaps you should try some spelling variations:
truong quan » trong quan, thong quan, luong quan
trung tuan » trung thanh, trung tam, tran tuan
nhung cong » dung cong, thong cong, hang cong
toc sach » hoc sach, doc sach, thuoc sach
cong san » cong tac
san phan » san pham, van phan, sat phan
phan cau » phan dau, phan cac, phan tu

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

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