Perhaps you should try some spelling variations:
nghien cac » nghiep cach, nghien cuu, nghiep cay
cach thuc » anh thuc, cac thu
hoc cach » hoc cac, hoc sach, cuoc cach
thuc tap » tuc tap, thuc thai, thuc vat
cac cong » cua cong
cong coc » cong cuoc, cong cac, cong co
coc hanh » hoc hanh, doc hanh, co hanh
hanh hoa » thanh hoa, khanh hoa, hang hoa
nhan van » nhan va, phan van, nha van
nhan dan » phan dau, gian dan, nhan tai
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: hoc cach thuc tap, nghien cac cong coc hanh hoa hoc xa hoi va ((nhan van) OR (nhan dan))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc cach thuc tap, nghien cac cong coc hanh hoa hoc xa hoi va ((nhan van) OR (nhan dan))".
• Adding a wildcard symbol may retrieve word variants: hoc cach thuc tap, nghien cac cong coc hanh hoa hoc xa hoi va ((nhan van) OR (nhan dan))*.