Perhaps you should try some spelling variations:
chieu xanh » chieu sang, hieu manh
chieu sach » chinh sach, chiet tach, chieu sang
chieu tinh » trieu tinh, lieu tinh, chau tinh
nhung cong » dung cong, thong cong, hang cong
hanh hinh » hanh chinh, hanh tinh, hanh dinh
cua nhung » va nhung
hinh cua » chinh cua, sinh cua, tinh cua
cong tac » cong ty
tac toan » tap toan, tam toan, hach toan
toan cao » toan ban, toan tap

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) OR (chieu sach))) or (chieu tinh)) - hanh hinh cua nhung cong tac toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((((chieu xanh) OR (chieu sach))) OR (chieu tinh)) - hanh hinh cua nhung cong tac toan cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi ((((chieu xanh) OR (chieu sach))) or (chieu tinh)) - hanh hinh cua nhung cong tac toan cao".
• Adding a wildcard symbol may retrieve word variants: doi ((((chieu xanh) OR (chieu sach))) or (chieu tinh)) - hanh hinh cua nhung cong tac toan cao*.