Perhaps you should try some spelling variations:
nhanh chong » thanh cong, khanh phong
nghien thu » nghiem thuc, nghiep thuc, nghien cuu
chong hoc » chung hoc, chong doc, thong hoc
thu sach » tu sach, thuat sach, thuoc sach
co nhanh » co thanh, co hanh, co phanh
te sach » toc sach
cong co » dong co, cong cu, cong so
va pham » van pham, 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: ((thu sach) or (te sach)) hoi dap, nghien thu cong co nhanh chong hoc xa hoi va pham van~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((thu sach) OR (te sach)) hoi dap, nghien thu cong co nhanh chong hoc xa hoi va pham van.
• Adding a wildcard symbol may retrieve word variants: ((thu sach) or (te sach)) hoi dap, nghien thu cong co nhanh chong hoc xa hoi va pham van*.