Perhaps you should try some spelling variations:
chua tinh » cua tinh, cha tinh, thuat tinh
cong chuc » cong thuc, cong cu, cong cua
chuc bang » chuc nang, chu bang, chua bang
bang song » nang song
chu tinh » chau tinh, cuu tinh, chu tich
song van » hoang van, trong van, duong van
ban thu » van thu, ban tu, lan thu
ban thi » dan thi, van thi, can thi

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((chu tinh) or (chua tinh)) - thanh cong chuc bang song van ((ban thu) or (ban thi))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chu tinh) OR (chua tinh)) - thanh cong chuc bang song van ((ban thu) OR (ban thi)).
• Adding a wildcard symbol may retrieve word variants: theo ((chu tinh) or (chua tinh)) - thanh cong chuc bang song van ((ban thu) or (ban thi))*.