Perhaps you should try some spelling variations:
chau tinh » cuu tinh, ha tinh, cua tinh
trinh van » trinh quan, trinh toan, dinh van
trinh han » trinh quan
cong dan » cong tan, huong dan, cong dong
cong san » cong tac
phan cau » phan dau, phan cac, phan tu
ho chau » ha chau, ho chu, o chau

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

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