Perhaps you should try some spelling variations:
chieu tinh » lieu tinh, chau tinh, kieu tinh
hang cong » dang cong, hang nong, bang cong
dang cua » dong cua, mang cua, hang cua
dung cua » dung luan, dung cho
cong tac » cong ty
tac toan » tap toan, tam toan, hach toan
toan cau » 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: theo ((chieu tinh) or (trieu tinh)) - nhan ((dang cua) or (dung cua)) hang cong tac toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu tinh) OR (trieu tinh)) - nhan ((dang cua) OR (dung cua)) hang cong tac toan cau.
• Adding a wildcard symbol may retrieve word variants: theo ((chieu tinh) or (trieu tinh)) - nhan ((dang cua) or (dung cua)) hang cong tac toan cau*.