Perhaps you should try some spelling variations:
nganh khong » nganh cong, nhanh chong, nganh nong
khong thuoc » khang thuoc, hong phuoc, dong thuoc
hoc nganh » hoc nhanh
sach moi » sach doi, sach hoi, bach mai
thuoc xa » thuoc ma, thuoc va, thuoc la
giai dan » giai doan, gian dan, giai han
anh hoc » sinh hoc, benh hoc, hinh hoc
cuu mon » cuu mo, cuu mot, cuu cong
mon hoc » toan hoc, dong hoc

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