Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
hoc chieu » hoc thieu, ho chieu, hoc hien
doi chieu » doc hieu, doi chi, ho chieu
hang cong » dang cong, bang cong, thanh cong
hang nong » thang long, han tong
trinh va » trinh van, trinh vat, trinh ve
van phan » van phong, van thanh, luan phan
phan tap » phan lap, han tap, pha tap

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 - hanh trinh va ((hang cong) OR (hang nong)) van phan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc chieu) OR (doi chieu)) sach - hanh trinh va ((hang cong) OR (hang nong)) van phan tap*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((hoc chieu) or (doi chieu)) sach - hanh trinh va ((hang cong) OR (hang nong)) van phan tap*".