Perhaps you should try some spelling variations:
chieu sach » chiet tach, chieu sang, chieu xanh
hanh trang » thanh trung, canh tranh, minh trang
hanh trinh » canh tranh, hanh chinh
nang cong » nang song, dang cong, bang cong
cong tan » cong tac, cong san, cong thanh
tan phan » toan phan, than phan, van phan
phan dau » phan tu, hang dau
va nang » van nang, da nang, cam nang

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