Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
sach hoc » cach hoc, sach hoi, mach hoc
cuu tong » cuu cong, cuu tinh, huu tung
tong hoc » tuong hoc, thong hoc, trong hoc
anh khoa » doanh khoa, hang khoa
hoi benh » hoc benh, hoa benh, hoi binh
nhan tai » hang tai, van tai, toan tai
anh hoa » danh hoa, hanh hoa, anh hoc
hoc xa » hoc ma

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

• Performing a fuzzy search may retrieve terms with similar spellings: thuat sach hoc tap, nghien cuu tong hoc ((anh hoa) or (anh khoa)) hoc xa hoi benh nhan tai~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuat sach hoc tap, nghien cuu tong hoc ((anh hoa) OR (anh khoa)) hoc xa hoi benh nhan tai.
• Adding a wildcard symbol may retrieve word variants: thuat sach hoc tap, nghien cuu tong hoc ((anh hoa) or (anh khoa)) hoc xa hoi benh nhan tai*.