Perhaps you should try some spelling variations:
cua thuong » cua truong, cua phuong, ca thuong
hoc chinh » hoan chinh, hoc sinh, hoc kinh
canh manh » lanh manh, canh tranh, cach mang
manh cua » doanh cua, ban cua
toan cao » toan ban, toan tap
con bai » co bai, con lai, cuong bai
con ban » con bang, co ban, can ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc chinh sach - canh manh cua thuong ((con bai) or (con ban)) toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chinh sach - canh manh cua thuong ((con bai) OR (con ban)) toan cao.
• Adding a wildcard symbol may retrieve word variants: hoc chinh sach - canh manh cua thuong ((con bai) or (con ban)) toan cao*.