Perhaps you should try some spelling variations:
chiet tach » chieu sach
truong dao » truong dai, truong cao, truong bo
nhung cong » dung cong, thong cong, hang cong
trung dai » truong dai, trung tam, trung cap
ho chiet » ho chieu, ho thiet, hoc thiet
cong san » cong tac
toan cau » toan cao, toan tap, toan tai
toan ban » van ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho chiet tach - thanh ((trung dai) OR (truong dao)) nhung cong san ((toan cau) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chiet tach - thanh ((trung dai) OR (truong dao)) nhung cong san ((toan cau) OR (toan ban)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chiet tach - thanh ((trung dai) OR (truong dao)) nhung cong san ((toan cau) or (toan ban))".
• Adding a wildcard symbol may retrieve word variants: ho chiet tach - thanh ((trung dai) OR (truong dao)) nhung cong san ((toan cau) or (toan ban))*.