Perhaps you should try some spelling variations:
dinh hoc » sinh hoc, hinh hoc, tinh hoc
hieu mot » thieu mot, hieu moi, hieu so
pho khoa » phu khoa, pha khoa, tho khoa
khoa hoc » hoa hoc
su dinh » vu dinh, su kinh, su hinh
cuu mon » cuu mo, cuu mot, cuu cong
va phan » van phan, va phat, va phap
phan va » phan van, nhan va, han va
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: su dinh hoc tap, nghien ((cuu mon) or (hieu mot)) hoc pho khoa hoc xa hoi va phan va~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su dinh hoc tap, nghien ((cuu mon) OR (hieu mot)) hoc pho khoa hoc xa hoi va phan va.
• Adding a wildcard symbol may retrieve word variants: su dinh hoc tap, nghien ((cuu mon) or (hieu mot)) hoc pho khoa hoc xa hoi va phan va*.