Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
trinh quan » tinh quang, trinh luat, trinh han
quan thong » quang thong, quan trong, xuan thong
hoc chieu » hoc thieu, hoc hien, hoc dieu
ho chieu » theo chieu, hoc thieu, doi chieu
cong dan » cong san, cong tan, cong dong
than ban » thanh ban, toan ban, than man

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