Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
chieu tinh » trieu tinh, lieu tinh, chau tinh
hanh trinh » canh tranh, hanh chinh
cuong danh » cuon danh, huong dan, cuong linh
trinh vat » trinh van, trinh luat, sinh vat
vat nhung » va nhung, vap nhung, vai nhung
cong danh » cong dan, cong thanh, cong khanh
toan tap » toan 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) or (chieu tinh)) - hanh trinh vat nhung ((cong danh) OR (cuong danh)) toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu sach) OR (chieu tinh)) - hanh trinh vat nhung ((cong danh) OR (cuong danh)) toan tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu sach) or (chieu tinh)) - hanh trinh vat nhung ((cong danh) OR (cuong danh)) toan tap".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sach) or (chieu tinh)) - hanh trinh vat nhung ((cong danh) OR (cuong danh)) toan tap*.