Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
chieu xanh » chieu sach, chieu sang, chieu tinh
doi chieu » doc hieu, doi chi, ho chieu
san chang » ban hang, dan chan, van khang
cong san » cong tac
chang tu » chung tu, chang xu, hang tu
manh va » anh va, minh va, lanh va
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: doi chieu xanh - canh ((manh va) OR (hanh va)) nhung cong san chang tu~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chieu xanh - canh ((manh va) OR (hanh va)) nhung cong san chang tu".
• Adding a wildcard symbol may retrieve word variants: doi chieu xanh - canh ((manh va) OR (hanh va)) nhung cong san chang tu*.