Perhaps you should try some spelling variations:
khau thong » khau thuong, khap thong, khau tong
phan tong » phan trong, phan cong, han tong
thuc cach » thuoc sach, truoc cach, thuc hanh
sach tham » sach nha
tham thuc » nham thuc, pham thuc, tam thuc
cach khoe » bach khoa, cach thoi, cac khoi
khoe khau » kho khan, khoa kham, khoa phau
sach tri » sach tai, sach tren, sach truc
tri thuc » tri tue
cach hoa » cach hoan, cach hoc, bach hoa
hoa phan » hoa dan, co phan
tu sach » thu sach, su sach, tu cach
te sach » toc 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 tri thuc cach hoa phan tong ) or ( te sach tham thuc cach khoe khau thong ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( tu sach tri thuc cach hoa phan tong ) OR ( te sach tham thuc cach khoe khau thong )).
• Adding a wildcard symbol may retrieve word variants: (( tu sach tri thuc cach hoa phan tong ) or ( te sach tham thuc cach khoe khau thong ))*.