Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu sach » chinh sach, chiet tach, chieu sang
hanh nhung » anh nhung, canh nhung, doanh nhung
thanh hung » thanh huong, thanh tung, thanh cong
cong toan » cong tan, cong hoan, cong tuan
toan phan » thanh phan, toan ban, hoa phan
ho chieu » theo chieu, hoc thieu, doi chieu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho chieu sach - thanh trung ((hanh nhung) or (thanh hung)) cong toan phan tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - thanh trung ((hanh nhung) OR (thanh hung)) cong toan phan tu.
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - thanh trung ((hanh nhung) or (thanh hung)) cong toan phan tu*.