Perhaps you should try some spelling variations:
thanh trung » thanh tung
theo chieu » theo tieu, ho chieu, theo chu
chieu sach » chinh sach, chiet tach, chieu sang
dap nhung » va nhung, dap ung, cam nhung
vap nhung » va nhung, ve nhung, voi nhung
trong van » trong cac
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 - thanh trung ((dap nhung) or (vap nhung)) trong van ban hanh~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu sach - thanh trung ((dap nhung) OR (vap nhung)) trong van ban hanh.
• Adding a wildcard symbol may retrieve word variants: theo chieu sach - thanh trung ((dap nhung) or (vap nhung)) trong van ban hanh*.