Perhaps you should try some spelling variations:
doanh thanh » danh thanh, doanh nhan, dinh thanh
doanh doanh » toan doanh, doanh hoan, dong doanh
triet tinh » trieu tinh, trien tinh, trien kinh
cong thanh » dong thanh, cong trinh, cong tan
mon triet » minh triet, bo triet, mao triet
cong than » cong thang, cong tan, cong thai
phan cac » nhan cach, phan dau, phan lap

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 - ((doanh doanh) OR (doanh thanh)) cua cong ((cong than) or (cong thanh)) phan cac~.
• If you are trying to use Boolean operators, they must be ALL CAPS: mon triet tinh - ((doanh doanh) OR (doanh thanh)) cua cong ((cong than) OR (cong thanh)) phan cac.
• The words AND, OR and NOT may confuse the search; try adding quotes: "mon triet tinh - ((doanh doanh) OR (doanh thanh)) cua cong ((cong than) or (cong thanh)) phan cac".
• Adding a wildcard symbol may retrieve word variants: mon triet tinh - ((doanh doanh) OR (doanh thanh)) cua cong ((cong than) or (cong thanh)) phan cac*.