Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
hoc chieu » hoc thieu, hoc hien, hoc dieu
cong bang » cuong bang, dong bang, hong bang
ho chieu » theo chieu, hoc thieu, doi chieu
trinh va » trinh van, trinh vat, trinh ve
cong ban » cong san, cong tan, cong dan
phan tap » phan lap, han tap, pha tap
va hang » van hang, va nang, va lang

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