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