Perhaps you should try some spelling variations:
hoa thanh » hoan thanh, ha thanh, hoc thanh
danh nhan » doanh nhan, thanh nhan, benh nhan
cach toi » cach thoi, cac toi, cach noi
cuu cong » cua cong, thu cong, cac cong
cong hoa » dong hoa, dong hoc, hang hoa
hoc luat » hoc luan, hoc thuat, bo luat
hai danh » thai danh, hai anh, hai dang
nhan dan » phan dau, gian dan, nhan tai
tu cach » tu cac
toi tap » toi gap, toan tap, tong tap
hoc xua » hoc cua, hoc xa, hoc lua

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu cach toi tap, nghien cuu cong hoa thanh cong ((hoc xua) or (hoc luat)) hai danh nhan dan~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu cach toi tap, nghien cuu cong hoa thanh cong ((hoc xua) OR (hoc luat)) hai danh nhan dan.
• Adding a wildcard symbol may retrieve word variants: tu cach toi tap, nghien cuu cong hoa thanh cong ((hoc xua) or (hoc luat)) hai danh nhan dan*.