Perhaps you should try some spelling variations:
triet tinh » trieu tinh, trien tinh, trien kinh
hanh trinh » canh tranh, hanh chinh
mon triet » minh triet, bo triet, mao triet
trinh cua » tinh cua, trinh luat, trinh quan
cua thang » cua hang, cua thanh, xua thang
long doan » cong doan, dong doanh, rong doanh
long dan » cong dan, nong dan, long van
than cau » toan cau, phan cau, than cap
phan dau » phan tu, hang dau

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

• Performing a fuzzy search may retrieve terms with similar spellings: mon triet tinh - hanh trinh cua thang ((long dan) or (long doan)) ((than cau) or (phan dau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: mon triet tinh - hanh trinh cua thang ((long dan) OR (long doan)) ((than cau) OR (phan dau)).
• Adding a wildcard symbol may retrieve word variants: mon triet tinh - hanh trinh cua thang ((long dan) or (long doan)) ((than cau) or (phan dau))*.