Perhaps you should try some spelling variations:
thanh truong » thanh trung, thanh thuong, thanh tung
hien hanh » dieu hanh
hieu cach » hieu cac, chieu sach, hieu ca
cua hang » cua dang, cua nhung, cua cong
cong dan » cong san, cong tan, huong dan
dan chan » dan gian, dan ca, van chat
chan cau » phan cau, can cau, chinh cau

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((hien hanh) or (hieu cach)) - thanh truong ((cua hang) or (va nhung)) cong dan chan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hien hanh) OR (hieu cach)) - thanh truong ((cua hang) OR (va nhung)) cong dan chan cau.
• Adding a wildcard symbol may retrieve word variants: hoc ((hien hanh) or (hieu cach)) - thanh truong ((cua hang) or (va nhung)) cong dan chan cau*.