Perhaps you should try some spelling variations:
thieu thanh » thien thanh, thi thanh, thu thanh
doanh doanh » toan doanh, doanh hoan, doanh thanh
hoc phuong » hoc thuong, cac phuong
hoc thieu » toc thieu, hoc hien
doanh cua » doanh luan
dan toan » van toan, dan than, manh toan
toan cao » toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc thieu thanh - doanh doanh cua ((bang phuong) or (hoc phuong)) dan toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu thanh - doanh doanh cua ((bang phuong) OR (hoc phuong)) dan toan cao.
• Adding a wildcard symbol may retrieve word variants: hoc thieu thanh - doanh doanh cua ((bang phuong) or (hoc phuong)) dan toan cao*.