Perhaps you should try some spelling variations:
thanh nhan » thanh phan, thanh san, thanh toan
thanh hoa » thanh pho
hoi thanh » hoc thanh, hai thanh, hoa thanh
sach doi » sach hoi, sach moi, sach dao
cuu dong » cuu tong, cuu long, luu dong
cuu cong » cua cong, thu cong, cac cong
co thanh » cho thanh, o thanh, co tranh
nhan dan » phan dau, gian dan, nhan tai
te sach » toc sach
doi tap » doi tac, doi dap, doi tai
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: te sach doi tap, nghien ((cuu dong) or (cuu cong)) co thanh hoa hoc xa hoi thanh nhan dan~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach doi tap, nghien ((cuu dong) OR (cuu cong)) co thanh hoa hoc xa hoi thanh nhan dan.
• Adding a wildcard symbol may retrieve word variants: te sach doi tap, nghien ((cuu dong) or (cuu cong)) co thanh hoa hoc xa hoi thanh nhan dan*.