Perhaps you should try some spelling variations:
cong khoa » cong hoa, con khoa, dong khoa
che thuoc » nha thuoc, cay thuoc, cua thuoc
thuoc van » thuoc va, thuc van, thuoc ban
xach tay » canh tay
khoa hoi » khoan hoi, khoa hoc, khoa doi
sach tay » sach hay, sach nay, sach tai
doi cua » dai cua, hoi cua
anh doi » anh noi, anh doc, thanh doi
van anh » van thanh, tuan anh, van minh
hieu ke » hieu kem, chieu ke, hieu ky
ke che » ke he
cua te » cua tu

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

• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach tay) OR (xach tay)) cong khoa hoi. hieu ke che thuoc van anh doi cua te~.
• Adding a wildcard symbol may retrieve word variants: tu ((sach tay) or (xach tay)) cong khoa hoi. hieu ke che thuoc van anh doi cua te*.