Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
hanh trinh » canh tranh, hanh chinh
tieu sach » chieu sach, dien sach, te sach
hanh tang » hanh trang, anh tang, hanh mang
cua nhung » va nhung
tan toan » tan tran, tap toan, van toan
van quan » van ban

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 tang) or (hanh trinh)) cua nhung cong ((tan toan) or (van quan)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu sach - ((hanh tang) OR (hanh trinh)) cua nhung cong ((tan toan) OR (van quan)) cau.
• Adding a wildcard symbol may retrieve word variants: theo tieu sach - ((hanh tang) or (hanh trinh)) cua nhung cong ((tan toan) or (van quan)) cau*.