Perhaps you should try some spelling variations:
chieu tinh » trieu tinh, chau tinh, kieu tinh
manh chung » manh hung, lanh chung, doanh chung
lieu tinh » trieu tinh, diep tinh, bien tinh
chung cua » chung cu, dung cua, huong cua
dang cong » dung cong
cua dang » cua cong, cua ban
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 (lieu tinh)) - manh chung cua dang cong tac toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu tinh) OR (lieu tinh)) - manh chung cua dang cong tac toan cau.
• Adding a wildcard symbol may retrieve word variants: theo ((chieu tinh) or (lieu tinh)) - manh chung cua dang cong tac toan cau*.