Perhaps you should try some spelling variations:
chieu tinh » trieu tinh, lieu tinh, chau tinh
truong cao » truong dai
trung cua » truong cua, trung tuan, trung cap
hang cong » dang cong, hang nong, bang cong
ho chieu » theo chieu, hoc thieu, doi chieu
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: ho chieu tinh - thanh ((trung cua) or (truong cao)) hang cong tac toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu tinh - thanh ((trung cua) OR (truong cao)) hang cong tac toan cau.
• Adding a wildcard symbol may retrieve word variants: ho chieu tinh - thanh ((trung cua) or (truong cao)) hang cong tac toan cau*.