Perhaps you should try some spelling variations:
chieu tinh » trieu tinh, lieu tinh, chau tinh
hanh doanh » hang doanh, chinh doanh, doanh doanh
nhan thong » nhan trong, nha thong, nhan khong
nhan khoa » nha khoa, khuan khoa, toan khoa
cong san » cong tac
san toan » van toan, dan toan, manh toan
toan tap » toan ban
ha tinh » va tinh, may tinh

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((chieu tinh) or (ha tinh)) - hanh doanh ((nhan thong) or (nhan khoa)) cong san toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((chieu tinh) OR (ha tinh)) - hanh doanh ((nhan thong) OR (nhan khoa)) cong san toan tap.
• Adding a wildcard symbol may retrieve word variants: hoc ((chieu tinh) or (ha tinh)) - hanh doanh ((nhan thong) or (nhan khoa)) cong san toan tap*.