Perhaps you should try some spelling variations:
theo thuat » thien thuat, thu thuat, te thuat
thuat sach » thuat lanh, thuat san
cua dung » cua dang, qua dung, cua rung
cua dong » chua dong, cua cong, cua dang
trong ca » trong cac, trong nha
phan cac » nhan cach, phan dau, phan lap
ca phan » cac phan, cao phan, cap phan

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo thuat sach - canh tranh ((cua dung) or (cua dong)) trong ca phan cac~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo thuat sach - canh tranh ((cua dung) OR (cua dong)) trong ca phan cac.
• Adding a wildcard symbol may retrieve word variants: theo thuat sach - canh tranh ((cua dung) or (cua dong)) trong ca phan cac*.