Perhaps you should try some spelling variations:
hanh trung » thanh trung, hanh trang, manh trung
hoc thieu » toc thieu, hoc hien
trung cua » truong cua, trung tuan, trung cap
ho chieu » theo chieu, doi chieu, mot chieu
van hanh » van thanh, van anh, van ban
ban hanh » ban hang
cua han » cua hang, cua nhan, cua phan

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

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