Perhaps you should try some spelling variations:
thuat canh » thuat lanh, thuat cong, thuat san
doanh khoa » toan khoa
canh hoc » anh hoc, cach hoc, danh hoc
dong hoc » dong co, dong luc
khoa hoc » hoa hoc
van nhan » van phan, van thanh, danh nhan
nhan dan » phan dau, gian dan, nhan tai
mon hoc » toan hoc
hoi van » hoi va, hoi dan, hai van
ma hoi » mai hoi, xa hoi, ma hoa

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

• Performing a fuzzy search may retrieve terms with similar spellings: thuat canh hoc tap, nghien cuu ((mon hoc) OR (dong hoc)) doanh khoa hoc ma hoi van nhan dan~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuat canh hoc tap, nghien cuu ((mon hoc) OR (dong hoc)) doanh khoa hoc ma hoi van nhan dan".
• Adding a wildcard symbol may retrieve word variants: thuat canh hoc tap, nghien cuu ((mon hoc) OR (dong hoc)) doanh khoa hoc ma hoi van nhan dan*.