Perhaps you should try some spelling variations:
thu sinh » thu minh, thu kinh, thuoc sinh
cuu dong » cuu cong, cuu tong, cuu long
dong cuc » dong luc, dong cua, tong cuc
cuc toan » duc toan, cua toan, cuu toan
khoa hoc » hoa hoc
nhan dan » phan dau, gian dan, nhan tai
nhan va » nhan tai, nhan tao, phan 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: thu sinh hoc tap, nghien cuu dong cuc toan khoa hoc xa hoi dap ((nhan va) or (nhan dan))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sinh hoc tap, nghien cuu dong cuc toan khoa hoc xa hoi dap ((nhan va) OR (nhan dan)).
• Adding a wildcard symbol may retrieve word variants: thu sinh hoc tap, nghien cuu dong cuc toan khoa hoc xa hoi dap ((nhan va) or (nhan dan))*.