Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
dang cong » dung cong
chu manh » ho manh, chu han, chu van
thang va » hang va, trang va, thong va
cong tac » cong ty
tac toan » tap toan, tam toan, hach toan
toan ban » van ban
tang va » trang va, tang van, tang vat

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

• Performing a fuzzy search may retrieve terms with similar spellings: cho ((chieu xanh) or (chu manh)) - hanh ((tang va) or (thang va)) dang cong tac toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: cho ((chieu xanh) OR (chu manh)) - hanh ((tang va) OR (thang va)) dang cong tac toan ban.
• Adding a wildcard symbol may retrieve word variants: cho ((chieu xanh) or (chu manh)) - hanh ((tang va) or (thang va)) dang cong tac toan ban*.