Perhaps you should try some spelling variations:
chau tinh » cuu tinh, ha tinh, cua tinh
hoc chau » hoc chat, moc chau, hoc cau
van nang » van quang, van ban, van dong
cong dan » cong san, cong tan, huong dan
cong tac » cong ty
toan ban » van ban
va nang » da nang, cam nang, kha nang

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc chau tinh - canh tranh ((va nang) OR (van nang)) ((cong dan) or (cong tac)) toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chau tinh - canh tranh ((va nang) OR (van nang)) ((cong dan) OR (cong tac)) toan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc chau tinh - canh tranh ((va nang) OR (van nang)) ((cong dan) or (cong tac)) toan ban".
• Adding a wildcard symbol may retrieve word variants: hoc chau tinh - canh tranh ((va nang) OR (van nang)) ((cong dan) or (cong tac)) toan ban*.