Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
dien tinh » bien tinh, dien hinh, dien kinh
thanh ve » hanh ve, thanh va, thanh vien
cong van » cong vang, cong san, song van
van than » van thanh, van thang, van tuan
than ban » thanh ban, toan ban, than man
hanh va » hang va, hanh vi

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

• Performing a fuzzy search may retrieve terms with similar spellings: co ((dien tinh) or (diep tinh)) - phan ((thanh ve) or (hanh va)) nhung cong van than ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: co ((dien tinh) OR (diep tinh)) - phan ((thanh ve) OR (hanh va)) nhung cong van than ban.
• Adding a wildcard symbol may retrieve word variants: co ((dien tinh) or (diep tinh)) - phan ((thanh ve) or (hanh va)) nhung cong van than ban*.