Perhaps you should try some spelling variations:
chieu tinh » trieu tinh, lieu tinh, chau tinh
hanh trinh » canh tranh, hanh chinh
cong thanh » dong thanh, cong trinh, truong thanh
doi chieu » doc hieu, doi chi, ho chieu
trinh vi » trinh va, trinh ve, trinh viet
cong tan » cong tac, cong san, cong ty
vi dung » va dung, vi ung, vi dong
san ban » sang ban, van ban, can ban

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 vi dung ((cong thanh) OR (cong tan)) san ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chieu tinh - hanh trinh vi dung ((cong thanh) OR (cong tan)) san ban".
• Adding a wildcard symbol may retrieve word variants: doi chieu tinh - hanh trinh vi dung ((cong thanh) OR (cong tan)) san ban*.