Perhaps you should try some spelling variations:
phap thong » phap phong, phap chong, pho thong
phau thong » khau thong, phan thong, phan thuong
khoa phap » khoan phai, khong phap, hoa phan
khoa phau » hoa phan, khoa kham, khoa than
sach tri » sach tai, sach tren, sach truc
cac khoa » cac khoan, cac khoi, dac khoa
su sach » so sach, vu sach
nha hoc » nha thuoc, khoa hoc, nha nuoc
hoc cac » hoc cao
tue da » thue da, tu da, tue de

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 tue da khoa phap thong ) or ( su sach nha hoc cac khoa phau thong ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( su sach tri tue da khoa phap thong ) OR ( su sach nha hoc cac khoa phau thong )).
• Adding a wildcard symbol may retrieve word variants: (( su sach tri tue da khoa phap thong ) or ( su sach nha hoc cac khoa phau thong ))*.