Perhaps you should try some spelling variations:
can khoa » san khoa, con khoa, van khoa
khoa hoc » hoa hoc
tu sinh » thu sinh, tuc sinh, tu minh
cuu mot » cua mot, cuu mo, huu mot
mot hoc » mon hoc, mo hoc, mot goc
hoc can » hoc dan, hoc cao, hoc cac
phap va » phap vat, pham va, pham van
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: tu sinh hoc tap, nghien cuu mot hoc can khoa hoc xa hoi va ((chat va) or (phap va))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sinh hoc tap, nghien cuu mot hoc can khoa hoc xa hoi va ((chat va) OR (phap va)).
• Adding a wildcard symbol may retrieve word variants: tu sinh hoc tap, nghien cuu mot hoc can khoa hoc xa hoi va ((chat va) or (phap va))*.