Perhaps you should try some spelling variations:
khau thong » khau thuong, khap thong, khau tong
phau thong » phap thong, phan thong, phan thuong
hoach thu » hoach thay, doanh thu, hoach su
cach khoa » bach khoa, cac khoa, cac khoan
khoa khau » khoa kham, khoa chau, khoa khac
thuc cach » thuoc sach, truoc cach, thuc hanh
khoa phau » hoa phan, khoa kham, khoa than
sach dao » lanh dao
dao thuc » dan thuc, dao tuc, do thuc
tu cach » tu cac
te sach » toc sach
thu tu » thu tuc, tu tu, thu thuy

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( thu hoach thu tu cach khoa khau thong ) or ( te sach dao thuc cach khoa phau thong ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( thu hoach thu tu cach khoa khau thong ) OR ( te sach dao thuc cach khoa phau thong )).
• Adding a wildcard symbol may retrieve word variants: (( thu hoach thu tu cach khoa khau thong ) or ( te sach dao thuc cach khoa phau thong ))*.