Perhaps you should try some spelling variations:
thuoc nhanh » thuoc nhan, thuoc thanh, thuc hanh
long thuoc » luong thuoc, dong thuoc, khong thuoc
nhanh hoa » nhanh hoan, thanh hoa, khanh hoa
ban thanh » ban hanh, ban hang
thoi tap » hoc tap, thoi dai, hoi tai
cuu long » cuu cong, cuu tong, cuu nang
khoa ban » khoa bai, khoa can, khoe ban
te sach » toc sach
toi tap » toi gap, toan tap, tong tap
xa khoa » da khoa, bia khoa, tai khoa
hoc xa » hoc ma

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach ((thoi tap) OR (toi tap)), nghien cuu long thuoc nhanh hoa hoc xa khoa ban thanh san~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ((thoi tap) OR (toi tap)), nghien cuu long thuoc nhanh hoa hoc xa khoa ban thanh san".
• Adding a wildcard symbol may retrieve word variants: te sach ((thoi tap) OR (toi tap)), nghien cuu long thuoc nhanh hoa hoc xa khoa ban thanh san*.