Perhaps you should try some spelling variations:
hanh sinh » hanh tinh, hanh dinh, hinh sinh
dang cong » dung cong
sinh van » sinh vat, dinh van, sinh va
van dang » van dong, van dung, van nang
cong dan » cong san, cong tan, huong dan
than cau » toan cau, phan cau, than cap
toan tap » toan ban
ho chau » ha chau, o chau, khoa chau
ho chu » hoi chu, cho chu, ho chua

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) or (ho chu)) tinh - hanh sinh van dang cong dan ((than cau) or (toan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chau) OR (ho chu)) tinh - hanh sinh van dang cong dan ((than cau) OR (toan tap)).
• Adding a wildcard symbol may retrieve word variants: ((ho chau) or (ho chu)) tinh - hanh sinh van dang cong dan ((than cau) or (toan tap))*.