Perhaps you should try some spelling variations:
dong chuc » cong chuc, don chuc, dong phuc
nganh hoa » thanh hoa, khanh hoa, danh hoa
sach moi » sach doi, sach hoi, bach mai
dong cuc » dong luc, dong cua, tong cuc
bo sach » co sach, hoc sach
moi tap » moi tai, toi tap
nhan va » nhan tai, nhan dan, nhan tao
hoc xa » hoc ma
hoi ca » hoi cua, hoi cac, hoi cau

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

• Performing a fuzzy search may retrieve terms with similar spellings: bo sach moi tap, nghien cuu ((dong chuc) OR (dong cuc)) nganh hoa hoc xa hoi ca nhan va~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "bo sach moi tap, nghien cuu ((dong chuc) OR (dong cuc)) nganh hoa hoc xa hoi ca nhan va".
• Adding a wildcard symbol may retrieve word variants: bo sach moi tap, nghien cuu ((dong chuc) OR (dong cuc)) nganh hoa hoc xa hoi ca nhan va*.