Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
truong van » truong va, truong dai, truong cao
hieu xanh » hieu manh, hieu nganh, dieu hanh
trong van » trong cac
nang cong » nang song, dang cong, bang cong
cong tac » cong ty
tac toan » tap toan, tam toan, hach toan
toan tap » toan ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: doc ((hieu xanh) OR (chieu xanh)) - thanh ((truong van) or (trong van)) nang cong tac toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc ((hieu xanh) OR (chieu xanh)) - thanh ((truong van) OR (trong van)) nang cong tac toan tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doc ((hieu xanh) OR (chieu xanh)) - thanh ((truong van) or (trong van)) nang cong tac toan tap".
• Adding a wildcard symbol may retrieve word variants: doc ((hieu xanh) OR (chieu xanh)) - thanh ((truong van) or (trong van)) nang cong tac toan tap*.