Perhaps you should try some spelling variations:
trung tuan » trung thanh, trung tam, tran tuan
chieu sach » chinh sach, chiet tach, chieu sang
nhung cong » dung cong, thong cong, hang cong
theo lich » thai lich, theo sach
dung cua » dung luan, dung cho
cong san » cong tac
san bao » van bao, san bai, san giao

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((theo lich) or (chieu sach)) - manh ((dung cua) or (trung tuan)) nhung cong san bao cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((theo lich) OR (chieu sach)) - manh ((dung cua) OR (trung tuan)) nhung cong san bao cao.
• Adding a wildcard symbol may retrieve word variants: hoc ((theo lich) or (chieu sach)) - manh ((dung cua) or (trung tuan)) nhung cong san bao cao*.