Perhaps you should try some spelling variations:
nhanh chong » thanh cong, khanh phong
chong hoc » chung hoc, chong doc, thong hoc
sach doi » sach hoi, sach moi, sach dao
cuu lang » cuu nang, cuu long, cu lang
co nhanh » co thanh, co hanh, co phanh
tu sach » thu sach, su sach, te sach
doi tap » doi tac, doi dap, doi tai
lang co » lang o, nang co, tang co
va nhan » van nhan, ca nhan, va nha
va phan » van phan, va phat, va phap
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: tu sach doi tap, nghien cuu lang co nhanh chong hoc xa hoi ((va nhan) OR (va phan)) dan~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach doi tap, nghien cuu lang co nhanh chong hoc xa hoi ((va nhan) OR (va phan)) dan".
• Adding a wildcard symbol may retrieve word variants: tu sach doi tap, nghien cuu lang co nhanh chong hoc xa hoi ((va nhan) OR (va phan)) dan*.