Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
hoc thieu » toc thieu, hoc hien
trinh cua » tinh cua, trinh luat, trinh quan
dang cong » dung cong
vang phan » nang phan, quang phan, va phan
ho chieu » theo chieu, doi chieu, mot chieu
cua dang » cua cong, cua ban
van phan » van phong, van thanh, luan phan

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) OR (hoc thieu)) sach - hanh trinh cua dang cong ((vang phan) or (van phan)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (hoc thieu)) sach - hanh trinh cua dang cong ((vang phan) OR (van phan)) cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chieu) OR (hoc thieu)) sach - hanh trinh cua dang cong ((vang phan) or (van phan)) cau".
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) OR (hoc thieu)) sach - hanh trinh cua dang cong ((vang phan) or (van phan)) cau*.