Perhaps you should try some spelling variations:
khau thong » khau thuong, khap thong, khau tong
thuoc sach » hoc sach, nuoc sach, thuat sach
phan thong » phan thuong, phan hong, phan tong
tao thuoc » cao thuoc, tac thuoc, tao duoc
sach khoa » bach khoa, sach nha, anh khoa
khoa khau » khoa kham, khoa phau, khoa chau
khoa phan » hoa phan, khoa than, khoa phau
bang tao » sang tao, nang tao, bang tay
cac khoa » cac khoan, cac khoi, dac khoa
tu bang » thu bang, te bang, su bang
ban dai » ban dan, can dai, bac dai
hoc cac » hoc cao
tu ban » thu ban, te ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( tu bang tao thuoc sach khoa khau thong ) or ( tu ban dai hoc cac khoa phan thong ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( tu bang tao thuoc sach khoa khau thong ) OR ( tu ban dai hoc cac khoa phan thong )).
• Adding a wildcard symbol may retrieve word variants: (( tu bang tao thuoc sach khoa khau thong ) or ( tu ban dai hoc cac khoa phan thong ))*.