Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
nganh dong » nganh cong, nhanh dong, nganh nong
dong thuoc » dung thuoc, dang thuoc, don thuoc
sach moi » sach doi, sach hoi, bach mai
dong hoc » dong co, dong luc
thuoc va » thuc va, thuoc ma, thuong va
gian dan » gian lang
moi tap » moi tai, toi tap
mon hoc » toan hoc
ca gian » ca giang, ca giao, va gian
va hoi » xa hoi, va hoc, va hoa
hoi ca » hoi cua, hoi cac, hoi cau

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

• Performing a fuzzy search may retrieve terms with similar spellings: thuat sach moi tap, nghien cuu ((mon hoc) OR (dong hoc)) nganh dong thuoc va hoi ca gian dan~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuat sach moi tap, nghien cuu ((mon hoc) OR (dong hoc)) nganh dong thuoc va hoi ca gian dan*".