Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
hieu sach » chieu sach, hieu cach, dien sach
trinh cua » tinh cua, trinh luat, trinh quan
cua trong » cua truong, cua trung, qua trong
ban thanh » ban hanh, ban hang
doc hieu » toc thieu, hoc thieu, hoc hien
dan toan » van toan, dan than, manh toan
van than » van thanh, van thang, van tuan

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

• Performing a fuzzy search may retrieve terms with similar spellings: doc hieu sach - hanh trinh cua trong cong ((((dan toan) or (ban thanh))) or (van than)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc hieu sach - hanh trinh cua trong cong ((((dan toan) OR (ban thanh))) OR (van than)) cau.
• Adding a wildcard symbol may retrieve word variants: doc hieu sach - hanh trinh cua trong cong ((((dan toan) or (ban thanh))) or (van than)) cau*.