Perhaps you should try some spelling variations:
manh trung » thanh trung, manh hung, sinh trung
quang dung » quang trung, ung dung, cuong dung
hien sach » dien sach, kien sach, thien hach
manh tung » manh hung, thanh tung
trong san » trong cac, cong san, dong san
san than » sang than, san thanh, ban than
than cap » khan cap, thanh lap, thanh cac

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc hien sach - ((manh trung) or (manh tung)) quang dung trong san than cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien sach - ((manh trung) OR (manh tung)) quang dung trong san than cap.
• Adding a wildcard symbol may retrieve word variants: hoc hien sach - ((manh trung) or (manh tung)) quang dung trong san than cap*.