Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu sach » chinh sach, chiet tach, chieu sang
can thuong » chan thuong, han thuong, lan thuong
thuong con » thuong dong, truong cong, thong cong
trung can » trung cap, trung van, trong can
doan phan » doanh phan, toan phan, dan phan
ho chieu » theo chieu, hoc thieu, doi chieu
van chat » cao chat

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 sach - thanh trung can thuong con ((doan phan) or (van chat)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - thanh trung can thuong con ((doan phan) OR (van chat)) cau.
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - thanh trung can thuong con ((doan phan) or (van chat)) cau*.