Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
gian thanh » gia thanh, ban thanh, van thanh
doi chieu » doc hieu, doi chi, mot chieu
hanh dung » thanh dung, anh dung, hanh dong
dung gian » duong gian, dung giao, dung giam
thanh dat » thanh san, thanh hai, thanh van
lluan van » luan va, luan von, quan van
dat van » dao van, dat va, dam 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 dung gian thanh dat van ((luan van) OR (lluan van))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chieu sach - hanh dung gian thanh dat van ((luan van) OR (lluan van))*".