Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
hanh trinh » hanh chinh
luat hang » luat hanh, luat chung, luat huong
hang cong » dang cong, hang nong, bang cong
cong tinh » cong trinh, cong vinh, long tinh
ho chieu » theo chieu, hoc thieu, doi chieu
toan ban » van ban

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 - ((hanh trinh) OR (canh tranh)) luat hang cong tinh toan ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu sach - ((hanh trinh) OR (canh tranh)) luat hang cong tinh toan ban".
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - ((hanh trinh) OR (canh tranh)) luat hang cong tinh toan ban*.