Perhaps you should try some spelling variations:
phau thong » phap thong, khau thong, phan thong
hanh khoa » hang khoa, anh khoa, hanh hoa
khoa phau » hoa phan, khoa kham, khoa than
thuc bach » truc bach, thuc cach, thuoc sach
thu hanh » thuc hanh, thu thanh, thuy hanh
hanh dao » lanh dao, thanh dat, thanh dam
tuc hanh » thuc hanh, tuc thanh, duc hanh
sach tai » sach bai, sach tham, sach dao
tai thuc » thai thuc, tri thuc, dai thuc
bach hoa » bach khoa, bach ha, cach hoan
hoc cong » hoc co, cac cong, hoc dung
dao tuc » dao duc
tu sach » thu sach, su sach, te sach

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( thu hanh dao tuc hanh khoa phau thong ) or ( tu sach tai thuc bach hoa hoc cong ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( thu hanh dao tuc hanh khoa phau thong ) OR ( tu sach tai thuc bach hoa hoc cong ))*.