Perhaps you should try some spelling variations:
hanh truong » hanh trong, anh truong, manh truong
truong cao » truong dai
nhung cong » dung cong, thong cong, hang cong
theo hieu » theo chieu, theo tieu, thien hieu
hieu lang » chieu sang, hieu quang, nhieu tang
cao nhung » cho nhung, cam nhung, cao chung
dan toan » van toan, dan than, manh toan
van than » van thanh, van thang, van tuan

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo hieu lang - hanh truong cao nhung cong ((dan toan) or (van than)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo hieu lang - hanh truong cao nhung cong ((dan toan) OR (van than)) cau.
• Adding a wildcard symbol may retrieve word variants: theo hieu lang - hanh truong cao nhung cong ((dan toan) or (van than)) cau*.