Perhaps you should try some spelling variations:
thuong cong » thong cong, thuong con, thuong dong
van thuong » va thuong, van chuong, van phuong
mot chieu » doi chieu
hanh tran » hanh trang, thanh tran, hanh tram
ho chieu » theo chieu, hoc thieu, doi chieu
tran van » luan van
dan than » dan chan, ban than, dan 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: ((mot chieu) or (ho chieu)) xanh - hanh tran van thuong cong ((dan than) or (van than)) cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((mot chieu) OR (ho chieu)) xanh - hanh tran van thuong cong ((dan than) OR (van than)) cao.
• Adding a wildcard symbol may retrieve word variants: ((mot chieu) or (ho chieu)) xanh - hanh tran van thuong cong ((dan than) or (van than)) cao*.