Perhaps you should try some spelling variations:
nhung duong » nhung dung, nhung huong, nhung tuong
chiet tach » chieu sach
thanh tung » thanh cong
duong manh » duong van
tieu sach » chieu sach, dien sach, te sach
cua nhung » va nhung
manh toan » thanh toan, anh tuan, tinh toan
tung cua » trung cua, tuong cua, dung cua
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) or (chiet tach)) - thanh tung cua nhung duong manh toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((tieu sach) OR (chiet tach)) - thanh tung cua nhung duong manh toan cao.
• Adding a wildcard symbol may retrieve word variants: theo ((tieu sach) or (chiet tach)) - thanh tung cua nhung duong manh toan cao*.