Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
tieu sach » chieu sach, dien sach, te sach
mang cua » dung cua, ban cua, cong cua
manh cua » doanh cua, ban cua
cong van » cong vang, cong san, song van
van toan » van tuan, van tan, van thanh
toan cao » toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo tieu sach - hanh ((mang cua) or (manh cua)) nhung cong van toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu sach - hanh ((mang cua) OR (manh cua)) nhung cong van toan cao.
• Adding a wildcard symbol may retrieve word variants: theo tieu sach - hanh ((mang cua) or (manh cua)) nhung cong van toan cao*.