Perhaps you should try some spelling variations:
trung doanh » trong doanh, trung thanh, dung doanh
ckhung long » hung long
manh trung » manh tung, thanh trung, manh hung
khung long » hung long, khung hoang, thang long
hieu lang » chieu sang, hieu quang, nhieu tang
moi hieu » moi dieu, hoi hieu, mot chieu
toan tap » toan ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: moi hieu lang - manh trung doanh ((ckhung long) or (khung long)) tinh toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: moi hieu lang - manh trung doanh ((ckhung long) OR (khung long)) tinh toan tap.
• Adding a wildcard symbol may retrieve word variants: moi hieu lang - manh trung doanh ((ckhung long) or (khung long)) tinh toan tap*.