Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
sach dao » lanh dao
cuu dong » cuu cong, cuu tong, cuu long
luc ngan » luc nganh, luat ngan, vu ngan
luc nhan » luc nhat, cu nhan, tue nhan
cau nhan » chau nhan, ca nhan, cu nhan
nhan dan » phan dau, gian dan, nhan tai
dao tac » dao tao, dao tuc, dao tay
hoi cau » hoi chu, hoc cau, hoa cau
hoc xa » hoc ma

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu sach dao tac, nghien cuu dong ((luc ngan) OR (luc nhan)) hoa hoc xa hoi cau nhan dan~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach dao tac, nghien cuu dong ((luc ngan) OR (luc nhan)) hoa hoc xa hoi cau nhan dan".
• Adding a wildcard symbol may retrieve word variants: thu sach dao tac, nghien cuu dong ((luc ngan) OR (luc nhan)) hoa hoc xa hoi cau nhan dan*.