Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
theo chieu » theo tieu, ho chieu, theo chu
canh van » anh van, can van, cach van
cong van » cong vang, cong san, song van
van phan » van phong, van thanh, luan phan
doi chi » doi khi
van va » van vat, van van, ban va

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((theo chieu) or (doi chi)) xanh - canh van va nhung cong van phan tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((theo chieu) OR (doi chi)) xanh - canh van va nhung cong van phan tu.
• Adding a wildcard symbol may retrieve word variants: ((theo chieu) or (doi chi)) xanh - canh van va nhung cong van phan tu*.