Perhaps you should try some spelling variations:
manh trung » manh tung, thanh trung, manh hung
chieu sang » chieu sach, chieu xanh, hieu lang
hieu manh » chieu xanh, hieu nganh, dieu hanh
trung ung » trung uong, trung dung, trung hung
dung cong » dung trong
san chang » ban hang, dan chan, van khang
chang cau » hang cau, nhung cau, hang ca
cong san » cong tac

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 sang) or (hieu manh)) - manh trung ung dung cong san chang cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu sang) OR (hieu manh)) - manh trung ung dung cong san chang cau.
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sang) or (hieu manh)) - manh trung ung dung cong san chang cau*.