Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
hanh trang » thanh trung, canh tranh, hanh trinh
dung thong » dung thuong, dung trong, dong thong
trien nhan » trien nha, tri nhan, trien khai
trien been » trien ben, trien ban, trien nen
trang qua » trong qua, trong quan, trang tuan
qua dung » quang dung, su dung, qua song

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

• Performing a fuzzy search may retrieve terms with similar spellings: mot chieu sach - hanh trang qua dung thong quan ((trien nhan) or (trien been))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: mot chieu sach - hanh trang qua dung thong quan ((trien nhan) OR (trien been)).
• Adding a wildcard symbol may retrieve word variants: mot chieu sach - hanh trang qua dung thong quan ((trien nhan) or (trien been))*.