Perhaps you should try some spelling variations:
ban thong » ban trong, ban tuong, ban tong
toc sach » hoc sach, doc sach, thuoc sach
giai ban » giai bai, giai han, giai san
sach che » sach thue, sach nha, sach cap
con hong » con song, cong thong, cong khong
sach xa » sach dao, sach nha, sach bai
ve giai » va giai, ve giao, de giai
vu sach » vu bach, su sach, vu khach
co tong » co trong, co dong, co ton
che ve » chep ve, che va, che vi
xa ve » ca ve, va ve, la ve

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( toc sach xa ve giai ban thong tin ) or ( vu sach che ve giai ((con hong) or (co tong)) minh ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( toc sach xa ve giai ban thong tin ) OR ( vu sach che ve giai ((con hong) OR (co tong)) minh )).
• Adding a wildcard symbol may retrieve word variants: (( toc sach xa ve giai ban thong tin ) or ( vu sach che ve giai ((con hong) or (co tong)) minh ))*.