Perhaps you should try some spelling variations:
thuat lanh » thuat lap, thuat san
hanh khoi » hanh thoi, hang khoa, dang khoi
lanh tren » lang tren, lanh truyen, doanh tren
khoa phau » hoa phan, khoa kham, khoa than
phau tong » phan tong, khau tong, pham trong
sach thu » sach thue, sach thieu, sach tham
thu thuc » thuc thuc, thu thuoc, thue thuc
khoi can » khoa can, khoi nang, hoc can
can tong » han tong, ban tong, can dong
may khoa » da khoa, ly khoa, y khoa
tu sach » thu sach, su sach, te sach
tren vi » tren vai, tren dia, tren thi
vi may » va may, li may, ve may

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 thu thuc hanh khoi can tong ) or ( thuat lanh tren vi may khoa phau tong ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( tu sach thu thuc hanh khoi can tong ) OR ( thuat lanh tren vi may khoa phau tong )).
• Adding a wildcard symbol may retrieve word variants: (( tu sach thu thuc hanh khoi can tong ) or ( thuat lanh tren vi may khoa phau tong ))*.