Perhaps you should try some spelling variations:
truong tung » truong trung, trong tung, truong thuong
chieu sach » chinh sach, chiet tach, chieu sang
chieu tinh » trieu tinh, lieu tinh, chau tinh
cua truong » cua trung, xuan truong, cac truong
tranh cua » doanh cua, manh cua
tung dan » dung dan, huong dan, trung dai
dan van » dang van, doan van, dao 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) or (chieu tinh)) - canh tranh cua truong tung dan van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((chieu sach) OR (chieu tinh)) - canh tranh cua truong tung dan van ban.
• Adding a wildcard symbol may retrieve word variants: hoc ((chieu sach) or (chieu tinh)) - canh tranh cua truong tung dan van ban*.