Perhaps you should try some spelling variations:
kham thong » khap thong, khau thong, pham thuong
khan thong » khap thong, khau thong, nhan thong
sach tham » sach nha
tham thuc » nham thuc, pham thuc, tam thuc
hanh phat » hang phat, hanh phan, hanh phap
phat kham » thuat kham, phat am, phap nham
sach dao » lanh dao
pha khan » pham khanh, phap khang, phap phan
tu sach » thu sach, te sach, tu cach
dao tuc » dao duc
tuc cac » tu cac, tich cac
cac pha » cach pha, cac phan, cac nha
su sach » so sach, vu sach

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( tu sach dao tuc cac pha khan thong ) or ( su sach tham thuc hanh phat kham thong ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( tu sach dao tuc cac pha khan thong ) OR ( su sach tham thuc hanh phat kham thong ))*.