Perhaps you should try some spelling variations:
nhanh chong » thanh cong, khanh phong
hoc sach » hoc sinh, hoc cac, hoc anh
sach dao » lanh dao
cao khai » cao chat, co khi, cao tai
toc sach » doc sach, thuoc sach, nuoc sach
chong ha » cong ha, hong ha, thong ha
dao cao » dao tao, bao cao, tao cao

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( hoc sach dao cao khai đong luc ) or ( ((te sach) or (toc sach)) nhanh chong ha đong luc ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( hoc sach dao cao khai đong luc ) OR ( ((te sach) OR (toc sach)) nhanh chong ha đong luc )).
• Adding a wildcard symbol may retrieve word variants: (( hoc sach dao cao khai đong luc ) or ( ((te sach) or (toc sach)) nhanh chong ha đong luc ))*.