Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
cua nhung » va nhung
cong khan » cong khanh, cong nhan, cong phan
khan toan » khanh toan, khan than, thanh toan
cao sach » co sach, cau sach, cuon sach
lao sach » lam sach, lai sach, loai sach
anh tang » anh bang, anh dang, anh nang
tang cua » mang cua, hang cua, tang luan
toan ban » van ban
ao sach » bo sach, co sach, so sach

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

• Performing a fuzzy search may retrieve terms with similar spellings: cho ((((cao sach) OR (lao sach))) or (ao sach)) - anh tang cua nhung cong khan toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: cho ((((cao sach) OR (lao sach))) OR (ao sach)) - anh tang cua nhung cong khan toan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "cho ((((cao sach) OR (lao sach))) or (ao sach)) - anh tang cua nhung cong khan toan ban".
• Adding a wildcard symbol may retrieve word variants: cho ((((cao sach) OR (lao sach))) or (ao sach)) - anh tang cua nhung cong khan toan ban*.