Perhaps you should try some spelling variations:
nganh dong » nganh cong, nhanh dong, nganh nong
dong thuoc » dung thuoc, dang thuoc, don thuoc
thanh nhan » thanh phan, thanh san, thanh toan
hoc nganh » hoc nhanh
sach moi » sach doi, sach hoi, bach mai
thuoc xa » thuoc ma, thuoc va, thuoc la
van phan » van phong, van thanh, luan phan
tu sach » thu sach, su sach, te sach
moi tac » doi tac, moi tai, moi sach
cuu hoa » cuu khoa, cuu hoan, cau hoa

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 moi tac, nghien cuu hoa hoc nganh dong thuoc xa hoi ((van phan) or (thanh nhan)) van~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach moi tac, nghien cuu hoa hoc nganh dong thuoc xa hoi ((van phan) OR (thanh nhan)) van.
• Adding a wildcard symbol may retrieve word variants: tu sach moi tac, nghien cuu hoa hoc nganh dong thuoc xa hoi ((van phan) or (thanh nhan)) van*.