Perhaps you should try some spelling variations:
doanh cua » doanh luan
cua triet » su triet, va triet
cham tuc » nham thuc, pham thuc, tham thuc
xa doanh » va doanh, hoa doanh, van doanh
cua viet » ca viet, hoa viet, cua vat
cao hoi » cau hoi, co hoi, cao hoc
hieu ve » hieu va, hieu van
ve cham » va cham, ve chat, vu cham
sac ky » cac ky, sai ky

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

• Performing a fuzzy search may retrieve terms with similar spellings: su ((sac ky) or (sach y)) nang cao hoi. hieu ve cham tuc xa doanh cua ((cua triet) or (cua viet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su ((sac ky) OR (sach y)) nang cao hoi. hieu ve cham tuc xa doanh cua ((cua triet) OR (cua viet)).
• Adding a wildcard symbol may retrieve word variants: su ((sac ky) or (sach y)) nang cao hoi. hieu ve cham tuc xa doanh cua ((cua triet) or (cua viet))*.