Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
tuan hoang » quan hoang, tran hoang, xuan hoang
canh manh » lanh manh, canh tranh, cach mang
manh tuan » anh tuan, manh toan, minh tuan
duong van » duong va, luong va, trong van
luan phan » luan van, luan hoan
dang van » hoang van, hang va

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 - canh manh tuan hoang ((duong van) or (dang van)) luan phan~.
• If you are trying to use Boolean operators, they must be ALL CAPS: mot chieu sach - canh manh tuan hoang ((duong van) OR (dang van)) luan phan.
• Adding a wildcard symbol may retrieve word variants: mot chieu sach - canh manh tuan hoang ((duong van) or (dang van)) luan phan*.