Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu sach » chinh sach, chiet tach, chieu sang
trung nghe » truong nghe, trong nghe, trinh nghe
thong cong » tong cong, thong thong, phong chong
hoc chieu » hoc thieu, ho chieu, hoc hien
tap doan » tap quan
doan ban » doanh ban, toan ban, doan van

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc chieu sach - thanh trung nghe ((thong cong) or (trong cong)) tap doan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chieu sach - thanh trung nghe ((thong cong) OR (trong cong)) tap doan ban.
• Adding a wildcard symbol may retrieve word variants: hoc chieu sach - thanh trung nghe ((thong cong) or (trong cong)) tap doan ban*.