Perhaps you should try some spelling variations:
thieu manh » hieu manh, tien manh, trieu minh
trien kinh » tri kinh, trinh kinh, trien dich
dung doanh » dung dan, dung dong
doanh cua » doanh luan
trong tan » trong quan, trong cac, trong ca
cua dung » cua dang, cua dong, qua dung
toan cao » toan ban
toan tap » toan ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc ((thieu manh) or (trien kinh)) - dung doanh cua dung trong tan ((toan cao) or (toan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc ((thieu manh) OR (trien kinh)) - dung doanh cua dung trong tan ((toan cao) OR (toan tap)).
• Adding a wildcard symbol may retrieve word variants: toc ((thieu manh) or (trien kinh)) - dung doanh cua dung trong tan ((toan cao) or (toan tap))*.