Perhaps you should try some spelling variations:
chieu tinh » lieu tinh, chau tinh, kieu tinh
cong cong » cong dong, trong cong, dung cong
hanh han » hanh nhan, hanh phan, hanh san
cong tac » cong ty
toan cau » toan cao, toan ban, toan tai
toan tap » toan ban
han cua » hang cua, nhan cua, than cua

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