Perhaps you should try some spelling variations:
cua truong » cua trung, xuan truong, cac truong
cua thuong » cua phuong, ca thuong, cua huong
hoc chinh » hoan chinh, hoc sinh, hoc kinh
hanh tang » hanh trang, anh tang, hanh mang
cong san » cong tac
san gian » dan gian, san giao, van gian
gian nan » gian dan, gian lan, gian van

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 - hanh tang ((cua thuong) or (cua truong)) cong san gian nan~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chinh sach - hanh tang ((cua thuong) OR (cua truong)) cong san gian nan.
• Adding a wildcard symbol may retrieve word variants: hoc chinh sach - hanh tang ((cua thuong) or (cua truong)) cong san gian nan*.