Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
dong thanh » truong thanh
chau tinh » cuu tinh, ha tinh, cua tinh
trinh cua » tinh cua, trinh luat, trinh quan
hoc chau » hoc chat, moc chau, hoc cau
cua nong » cua cong, cuu nong, cua dong
cong tan » cong tac, cong san, cong thanh
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: hoc chau tinh - hanh trinh cua nong ((cong tan) or (dong thanh)) toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chau tinh - hanh trinh cua nong ((cong tan) OR (dong thanh)) toan ban.
• Adding a wildcard symbol may retrieve word variants: hoc chau tinh - hanh trinh cua nong ((cong tan) or (dong thanh)) toan ban*.