Perhaps you should try some spelling variations:
truong vuong » truong phuong, truong thuong, duong vuong
truong huong » truong phuong, truong thuong, thuong phuong
thanh trung » thanh tung
chieu sach » chinh sach, chiet tach, chieu sang
dien sach » dien anh
trung cap » truong cao, trung tam
dan than » dan chan, ban than, van than
than cau » toan cau, phan cau, than cap

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

• Performing a fuzzy search may retrieve terms with similar spellings: doc ((chieu sach) or (dien sach)) - thanh trung cap ((truong huong) OR (truong vuong)) dan than cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc ((chieu sach) OR (dien sach)) - thanh trung cap ((truong huong) OR (truong vuong)) dan than cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doc ((chieu sach) or (dien sach)) - thanh trung cap ((truong huong) OR (truong vuong)) dan than cau".
• Adding a wildcard symbol may retrieve word variants: doc ((chieu sach) or (dien sach)) - thanh trung cap ((truong huong) OR (truong vuong)) dan than cau*.