Perhaps you should try some spelling variations:
hoc khanh » hoc nhanh, hoc thanh, hoc hanh
khanh hoa » thanh hoa, hang hoa
cach hoc » cach thuc, cach thoi, cac hop
dich hoc » sinh hoc, hinh hoc, tinh hoc
cuu cong » cua cong, thu cong, cac cong
cong hoc » dong hoc, cong hoa, cong coc
nhan van » nhan dan, nhan va, phan van
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 ((cach hoc) OR (dich hoc)) tap, nghien cuu cong hoc khanh hoa hoc xa hoi va nhan van~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc ((cach hoc) OR (dich hoc)) tap, nghien cuu cong hoc khanh hoa hoc xa hoi va nhan van".
• Adding a wildcard symbol may retrieve word variants: toc ((cach hoc) OR (dich hoc)) tap, nghien cuu cong hoc khanh hoa hoc xa hoi va nhan van*.