Perhaps you should try some spelling variations:
phuong cong » phuong dong, phong cong, phung cong
hanh trinh » canh tranh, hanh chinh
cua phuong » cuu phuong, cuc phuong, luan phuong
tieu sach » chieu sach, dien sach, te sach
trinh cua » tinh cua, trinh luat, trinh quan
van toan » van tuan, van tan, van thanh

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