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
sach hoc » cach hoc, sach hoi, mach hoc
thuoc xa » thuoc ma, thuoc va, thuoc la
tu sach » thu sach, su sach, te sach
cuu mon » cuu mo, cuu mot, cuu cong
mon hoc » toan hoc, dong hoc
va nhan » van nhan, va phan, va nha

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

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