Perhaps you should try some spelling variations:
manh trung » manh tung, thanh trung, manh hung
trung cua » truong cua, trung tuan, trung cap
hang dong » hang nong, hang cong, lang dong
hanh dong » anh dong, ha dong
theo chu » theo chieu, cho chu, chao chu
chu sach » cau sach, thu sach, chieu sach
toan ban » 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 chu sach - manh trung cua ((hang dong) or (hanh dong)) tinh toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chu sach - manh trung cua ((hang dong) OR (hanh dong)) tinh toan ban.
• Adding a wildcard symbol may retrieve word variants: theo chu sach - manh trung cua ((hang dong) or (hanh dong)) tinh toan ban*.