Perhaps you should try some spelling variations:
chieu tinh » trieu tinh, lieu tinh, chau tinh
trinh toan » tinh toan, thanh toan, trinh han
doi chieu » doc hieu, doi chi, ho chieu
trinh va » trinh van, trinh vat, trinh vi
trinh ve » trinh he, trinh vi, trinh viet
cong tan » cong tac, cong san, cong thanh
tan toan » tan tran, tap toan, van 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: doi chieu tinh - hanh ((((trinh va) OR (trinh ve))) or (trinh toan)) trong cong tan toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu tinh - hanh ((((trinh va) OR (trinh ve))) OR (trinh toan)) trong cong tan toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chieu tinh - hanh ((((trinh va) OR (trinh ve))) or (trinh toan)) trong cong tan toan cau".
• Adding a wildcard symbol may retrieve word variants: doi chieu tinh - hanh ((((trinh va) OR (trinh ve))) or (trinh toan)) trong cong tan toan cau*.