Perhaps you should try some spelling variations:
khoan phai » khong phai, khoa phau, khoan hoi
phai tuong » phan thuong, pham thuong, pham truong
phap thong » phap phong, phap chong, pho thong
khoa phap » khoa phau, khong phap, hoa phan
sach tri » sach tai, sach tren, sach truc
tri thuc » tri tue
thuc cac » thuc cach, tuc cac, phuc cac
thuc anh » thuc hanh, thuy anh, thu anh
anh khoa » doanh khoa, hang khoa
su sach » so sach, vu sach
tu sach » thu sach, te sach, tu cach
sach do » sach dao, sach doi, sach de
do thuc » hoc thuc, dan thuc

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( su sach tri thuc cac khoan phai tuong ) or ( tu sach do thuc anh khoa phap thong ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( su sach tri thuc cac khoan phai tuong ) OR ( tu sach do thuc anh khoa phap thong )).
• Adding a wildcard symbol may retrieve word variants: (( su sach tri thuc cac khoan phai tuong ) or ( tu sach do thuc anh khoa phap thong ))*.