Perhaps you should try some spelling variations:
chieu tinh » trieu tinh, lieu tinh, chau tinh
thong cong » trong cong, tong cong, thong thong
ho chieu » theo chieu, hoc thieu, doi chieu
trung va » truong va, trung ha, trung tam
trang va » tran van, hang va
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 va) OR (trang va)) thong cong tac toan cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu tinh - thanh ((trung va) OR (trang va)) thong cong tac toan cau".
• Adding a wildcard symbol may retrieve word variants: ho chieu tinh - thanh ((trung va) OR (trang va)) thong cong tac toan cau*.