Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
quan trien » quan tren, quang thien, quan tri
doi chieu » doc hieu, doi chi, mot chieu
qua duong » quan duong, qua dung, tuan duong
trien van » thien van, trien san, trien nhan
qua dong » quan dong, qua song, qua cong

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 - canh tranh ((qua dong) OR (qua duong)) thong quan trien van~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chieu sach - canh tranh ((qua dong) OR (qua duong)) thong quan trien van".
• Adding a wildcard symbol may retrieve word variants: doi chieu sach - canh tranh ((qua dong) OR (qua duong)) thong quan trien van*.