Perhaps you should try some spelling variations:
phap thong » phap phong, phap chong, pho thong
thuat cach » thuat sach, thuat canh, thuat mach
khoan phan » khoan phai, khoan thanh, hoa phan
phan thong » phan thuong, phan hong, phan tong
sach tren » sach tien, sach tranh
khoa phap » khoa phau, khoan phai, khong phap
cach thuc » anh thuc, cac thu
thuc tiep » thuc tien, truc tiep, thuc hien
tren tue » tren que, tren thuc, tri tue
cac khoa » cac khoi, dac khoa, cao khoa
tiep cac » tiep can, tiep cau, thien cac
te sach » toc sach
tue cac » tu cac, tuc cac, te cac

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 tren tue cac khoa phap thong ) or ( thuat cach thuc tiep cac khoan phan thong ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( te sach tren tue cac khoa phap thong ) OR ( thuat cach thuc tiep cac khoan phan thong )).
• Adding a wildcard symbol may retrieve word variants: (( te sach tren tue cac khoa phap thong ) or ( thuat cach thuc tiep cac khoan phan thong ))*.