Perhaps you should try some spelling variations:
nganh chong » nganh cong, nhanh chong, nganh khong
thuoc sach » hoc sach, nuoc sach, thuat sach
chong hoc » chung hoc, chong doc, thong hoc
sach hoc » cach hoc, sach hoi, mach hoc
dong hoc » dong luc
nhan dan » phan dau, gian dan, nhan tai
ma hoi » mai hoi, xa hoi, ma hoa
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: thuoc sach hoc tap, nghien cuu ((dong hoc) or (dong co)) nganh chong hoc ma hoi ca nhan dan~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuoc sach hoc tap, nghien cuu ((dong hoc) OR (dong co)) nganh chong hoc ma hoi ca nhan dan.
• Adding a wildcard symbol may retrieve word variants: thuoc sach hoc tap, nghien cuu ((dong hoc) or (dong co)) nganh chong hoc ma hoi ca nhan dan*.