Perhaps you should try some spelling variations:
nhanh thanh » phan thanh, nhanh tinh
thanh thuoc » thanh phuoc, hanh thuoc, thanh thuong
hoc nhanh » hoc nganh, hoc phan
cuu dong » cuu cong, cuu tong, cuu long
dong hoc » dong co, dong luc
thuoc xa » thuoc ma, thuoc va, thuoc la
nhan van » nhan dan, nhan va, phan van
tu sach » thu sach, su sach, te sach
doi tap » doi tac, doi dap, doi tan
doi tai » hoi tai, dai tai, doi tac
va nhan » van nhan, ca nhan, va phan

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 ((doi tap) OR (doi tai)), nghien cuu dong hoc nhanh thanh thuoc xa hoi va nhan van~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ((doi tap) OR (doi tai)), nghien cuu dong hoc nhanh thanh thuoc xa hoi va nhan van".
• Adding a wildcard symbol may retrieve word variants: tu sach ((doi tap) OR (doi tai)), nghien cuu dong hoc nhanh thanh thuoc xa hoi va nhan van*.