Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
dong thuoc » dung thuoc, dang thuoc, dong thuc
hoc nganh » hoc nhanh
don thuoc » dung thuoc, dang thuoc, doan phuoc
cuu cong » cua cong, thu cong, cac cong
cong hoc » dong hoc, cong hoa, cong coc
sach hoi » sach doi, sach moi, cach thoi
van nhan » van phan, van thanh, danh nhan
nhan tai » hang tai, van tai, toan tai
hoi tap » hoi dap, hoc tap, hoi 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 hoi tap, nghien cuu cong hoc nganh ((dong thuoc) OR (don thuoc)) va hoi van nhan tai~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuat sach hoi tap, nghien cuu cong hoc nganh ((dong thuoc) OR (don thuoc)) va hoi van nhan tai*".