Perhaps you should try some spelling variations:
khoan phap » khoan phai, khoa phau, han phap
phap thong » phap phong, phap chong, pho thong
hanh thon » hanh thoi, hanh thuoc, hanh trong
phu thong » pho thong, khau thong, phan thong
sach tai » sach bai, sach tham, sach dao
tai thuc » thai thuc, tri thuc, dai thuc
thon phu » thong phuc, thong thu, phong phu
vu sach » vu bach, su sach, vu khach
tai tao » tai sao
tao cac » tao bac, tao cao, tai cac
tu sach » thu sach, su sach, te sach

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( vu sach tai tao cac khoan phap thong ) or ( tu sach tai thuc hanh thon phu thong ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( vu sach tai tao cac khoan phap thong ) OR ( tu sach tai thuc hanh thon phu thong )).
• Adding a wildcard symbol may retrieve word variants: (( vu sach tai tao cac khoan phap thong ) or ( tu sach tai thuc hanh thon phu thong ))*.