Perhaps you should try some spelling variations:
nganh cong » nhanh chong, thanh cong
cong thuoc » cong thuc, dong thuoc, long thuoc
hoc nganh » hoc nhanh
cach hoc » cach thuc, cach thoi, dich hoc
sach doi » sach hoi, sach moi, sach dao
thuoc xa » thuoc ma, thuoc va, thuoc la
nhan van » nhan dan, nhan va, phan van
cuu mot » cua mot, cuu mo, huu mot
mot hoc » mon hoc, mo hoc, mot goc
va nhan » van nhan, ca nhan, va phan

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: tu ((cach hoc) or (sach doi)) tap, nghien cuu mot hoc nganh cong thuoc xa hoi va nhan van~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((cach hoc) OR (sach doi)) tap, nghien cuu mot hoc nganh cong thuoc xa hoi va nhan van.
• Adding a wildcard symbol may retrieve word variants: tu ((cach hoc) or (sach doi)) tap, nghien cuu mot hoc nganh cong thuoc xa hoi va nhan van*.