Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
hanh trinh » canh tranh, hanh chinh
trinh vat » trinh van, trinh luat, sinh vat
vat nhung » va nhung, vap nhung, vai nhung
ho chieu » theo chieu, hoc thieu, doi chieu
cong van » cong vang, cong san, song van
toan cao » toan ban, toan tap

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 vat nhung ((cong van) or (((cong tac) OR (cong ty)))) toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - hanh trinh vat nhung ((cong van) OR (((cong tac) OR (cong ty)))) toan cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu sach - hanh trinh vat nhung ((cong van) or (((cong tac) OR (cong ty)))) toan cao".
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - hanh trinh vat nhung ((cong van) or (((cong tac) OR (cong ty)))) toan cao*.