Perhaps you should try some spelling variations:
truong cao » truong dai
nhung cong » dung cong, thong cong, hang cong
trung cap » trung tam
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh toan
toan ban » van ban
co sach » cuon sach, hoc sach
bo sach » hoc sach

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi ((co sach) OR (bo sach)) - hanh ((truong cao) or (trung cap)) nhung cong dan toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((co sach) OR (bo sach)) - hanh ((truong cao) OR (trung cap)) nhung cong dan toan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi ((co sach) OR (bo sach)) - hanh ((truong cao) or (trung cap)) nhung cong dan toan ban".
• Adding a wildcard symbol may retrieve word variants: doi ((co sach) OR (bo sach)) - hanh ((truong cao) or (trung cap)) nhung cong dan toan ban*.