Perhaps you should try some spelling variations:
dong thuoc » dung thuoc, dang thuoc, don thuoc
nganh dong » nganh cong, nhanh dong, nganh nong
coc nganh » hoc nganh, cac nganh, chuc nganh
van nhan » van phan, van thanh, danh nhan
thuoc va » thuc va, thuoc ma, thuong va
cong coc » cong cuoc, cong cac, cong co
sach hoc » cach hoc, mach hoc, sach duoc
cuu cong » cua cong, thu cong, cac cong
sach hoi » sach doi, sach moi, cach thoi
nhan tai » hang tai, van tai, toan tai
hoi van » hoi va, hoi dan, hai van
va hoi » xa hoi, va hoc, va hoa

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) OR (sach hoi)) tap, nghien cuu cong coc nganh dong thuoc va hoi van nhan tai~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuat ((sach hoc) OR (sach hoi)) tap, nghien cuu cong coc nganh dong thuoc va hoi van nhan tai*".