Perhaps you should try some spelling variations:
trung trong » truong trung, thuong trong, dung trong
theo chieu » theo tieu, ho chieu, theo chu
chieu sach » chinh sach, chiet tach, chieu sang
trung cua » truong cua, trung tuan, dung cua
trung cap » truong cao, trung tam
van hanh » van thanh, van anh, van ban
ban hanh » ban hang

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo chieu sach - hanh ((trung cua) or (trung cap)) trung trong ((van hanh) OR (ban hanh)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu sach - hanh ((trung cua) OR (trung cap)) trung trong ((van hanh) OR (ban hanh)) cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chieu sach - hanh ((trung cua) or (trung cap)) trung trong ((van hanh) OR (ban hanh)) cau".
• Adding a wildcard symbol may retrieve word variants: theo chieu sach - hanh ((trung cua) or (trung cap)) trung trong ((van hanh) OR (ban hanh)) cau*.