Perhaps you should try some spelling variations:
khang thuoc » khong thuoc, dang thuoc, hanh thuoc
nhanh khang » nhanh thang, nhanh quang, nhanh thanh
sach thuc » cach thuc, sach thu, sach thue
hoc nhanh » hoc nganh, hoc phan
toc sach » hoc sach, doc sach, thuoc sach
thuc tap » tuc tap, thuc thai, thuc vat
cuu cong » cua cong, thu cong, cac cong
cong hoc » dong hoc, cong hoa, cong coc
thuoc xa » thuoc ma, thuoc va, thuoc la
va nhan » van nhan, ca nhan, va phan
va phap » va phat, ban phap

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc sach thuc tap, nghien cuu cong hoc nhanh khang thuoc xa hoi ((va nhan) or (va phap)) van~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc sach thuc tap, nghien cuu cong hoc nhanh khang thuoc xa hoi ((va nhan) OR (va phap)) van.
• Adding a wildcard symbol may retrieve word variants: toc sach thuc tap, nghien cuu cong hoc nhanh khang thuoc xa hoi ((va nhan) or (va phap)) van*.