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