Perhaps you should try some spelling variations:
hoc tieng » hoc hien
khoa hoc » hoa hoc
nhan dan » phan dau, gian dan, nhan tai
toc anh » hoc anh, ngoc anh, toc kinh
anh hoc » sinh hoc, benh hoc, hinh hoc
cuu mot » cua mot, cuu mo, huu mot
hoc tan » hoc tang, hoc dan, hoc tai
va nhan » van nhan, ca nhan, va phan
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: toc anh hoc tap, nghien cuu mot ((hoc tan) or (hoc tieng)) khoa hoc xa hoi va nhan dan~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc anh hoc tap, nghien cuu mot ((hoc tan) OR (hoc tieng)) khoa hoc xa hoi va nhan dan.
• Adding a wildcard symbol may retrieve word variants: toc anh hoc tap, nghien cuu mot ((hoc tan) or (hoc tieng)) khoa hoc xa hoi va nhan dan*.