Perhaps you should try some spelling variations:
than thuong » thanh thuong, phan thuong, han thuong
khoan than » khoan thanh, khoa than, khan than
khoan khau » khoanh khac, khoa kham, khoa phau
khau tong » khau thong, khau cong, khau thuong
sach tri » sach tai, sach tren, sach truc
tri thuc » tri tue
thuc cac » thuc cach, tuc cac, phuc cac
te sach » toc sach
su sach » so sach, vu sach

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( te sach tri thuc cac khoan than thuong ) or ( su sach tri thuc cac khoan khau tong ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( te sach tri thuc cac khoan than thuong ) OR ( su sach tri thuc cac khoan khau tong )).
• Adding a wildcard symbol may retrieve word variants: (( te sach tri thuc cac khoan than thuong ) or ( su sach tri thuc cac khoan khau tong ))*.