Perhaps you should try some spelling variations:
thuat lanh » thuat lap, thuat san
nhan dann » nhan dang, phan dang, nhac dan
lanh hoc » anh hoc, danh hoc, thanh hoc
nhan dan » phan dau, gian dan, nhan tai
cuu tin » cuu tinh, cuu tim, cuu tong
tin hoc » sinh hoc
hoc tan » hoc tang, hoc dan, hoc tai
tan hoa » van hoa, tap hoa, tan ha
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: thuat lanh hoc tap, nghien cuu tin hoc tan hoa hoc xa hoi va ((nhan dann) or (nhan dan))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuat lanh hoc tap, nghien cuu tin hoc tan hoa hoc xa hoi va ((nhan dann) OR (nhan dan)).
• Adding a wildcard symbol may retrieve word variants: thuat lanh hoc tap, nghien cuu tin hoc tan hoa hoc xa hoi va ((nhan dann) or (nhan dan))*.