Perhaps you should try some spelling variations:
hanh trinh » hanh chinh
thong cong » trong cong, tong cong, thong thong
hoc chieu » hoc thieu, ho chieu, hoc hien
doi chieu » doc hieu, doi chi, ho chieu
cua thong » cua thuong, cua khong, cua tong
cong san » cong tac
san toan » van toan, dan toan, manh toan
toan ban » van 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 chieu) or (doi chieu)) sach - ((canh tranh) or (hanh trinh)) cua thong cong san toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc chieu) OR (doi chieu)) sach - ((canh tranh) OR (hanh trinh)) cua thong cong san toan ban.
• Adding a wildcard symbol may retrieve word variants: ((hoc chieu) or (doi chieu)) sach - ((canh tranh) or (hanh trinh)) cua thong cong san toan ban*.