Perhaps you should try some spelling variations:
nganh dong » nganh cong, nhanh dong, nganh nong
hoc nganh » hoc nhanh
sach hoi » sach doi, sach moi, cach thoi
dong hoc » dong co, dong luc
phap van » pham van, phan van, phap han
tu sach » thu sach, su sach, te sach
hoi tap » hoi dap, hoc tap, hoi tai
cuu mon » cuu mo, cuu mot, cuu cong
mon hoc » toan hoc
va phap » va phat, ban phap
ma hoi » mai hoi, ma hoa, me hoi

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 hoi tap, nghien cuu mon hoc nganh dong hoc ((ma hoi) or (xa hoi)) va phap van~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach hoi tap, nghien cuu mon hoc nganh dong hoc ((ma hoi) OR (xa hoi)) va phap van.
• Adding a wildcard symbol may retrieve word variants: tu sach hoi tap, nghien cuu mon hoc nganh dong hoc ((ma hoi) or (xa hoi)) va phap van*.