Perhaps you should try some spelling variations:
phap phong » hai phong, phap phan
khoan khap » khoanh khac, khoa kham, khoa khac
khap thong » phap thong, khau thong, khac thuong
cach thuc » anh thuc, cac thu
thuc thuc » hoc thuc
thuc cach » thuoc sach, truoc cach, thuc hanh
cach khoa » bach khoa, cac khoa, anh khoa
khoa phap » khoa phau, khoan phai, khong phap
thuc cac » tuc cac, phuc cac, thac cac
te cach » ve cach, te sach, te cac
tu cach » tu 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 cach thuc thuc cach khoa phap phong ) or ( tu cach thuc thuc cac khoan khap thong ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( te cach thuc thuc cach khoa phap phong ) OR ( tu cach thuc thuc cac khoan khap thong )).
• Adding a wildcard symbol may retrieve word variants: (( te cach thuc thuc cach khoa phap phong ) or ( tu cach thuc thuc cac khoan khap thong ))*.