Perhaps you should try some spelling variations:
nganh dong » nganh cong, nhanh dong, nganh nong
dong thuoc » dung thuoc, dang thuoc, don thuoc
hoc nganh » hoc nhanh
thu sach » tu sach, thuat sach, thuoc sach
sach moi » sach doi, sach hoi, bach mai
thuoc xa » thuoc ma, thuoc va, thuoc la
nhan van » nhan dan, nhan va, phan van
moi tai » hoi tai, mo tai, moi thoi
cuu mon » cuu mo, cuu mot, cuu cong
mon hoc » toan hoc, dong hoc
hoi cua » hoi chuc
hoi ca » hoi cac, hoi cau, hoi va

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

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