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

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((((chieu xanh) OR (chieu tinh))) OR (chieu sach)) - hanh han va nhung cong tac toan cao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((((chieu xanh) OR (chieu tinh))) OR (chieu sach)) - hanh han va nhung cong tac toan cao".
• Adding a wildcard symbol may retrieve word variants: theo ((((chieu xanh) OR (chieu tinh))) OR (chieu sach)) - hanh han va nhung cong tac toan cao*.