Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
hanh trang » thanh trung, canh tranh, hanh trinh
nhung cong » dung cong, thong cong, hang cong
doi chieu » doc hieu, doi chi, ho chieu
trang cua » tranh cua, tang cua, trung cua
dang cong » dung cong
gian nan » gian dan, gian lan, gian van

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: doi chieu sach - hanh trang cua ((nhung cong) or (dang cong)) dan gian nan~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sach - hanh trang cua ((nhung cong) OR (dang cong)) dan gian nan.
• Adding a wildcard symbol may retrieve word variants: doi chieu sach - hanh trang cua ((nhung cong) or (dang cong)) dan gian nan*.