Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
trinh tam » trinh tai, trinh toan, trinh cham
tam trong » nam trong, lam trong, pham trong
ho trieu » mot trieu, 25 trieu, 30 trieu
cong san » cong tac
chan cao » chan cho, chat cao, toan cao
chay cao » cay cao, chat cao, nha cao

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ho trieu tinh - hanh trinh tam trong cong san ((chan cao) or (chay cao))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho trieu tinh - hanh trinh tam trong cong san ((chan cao) OR (chay cao)).
• Adding a wildcard symbol may retrieve word variants: ho trieu tinh - hanh trinh tam trong cong san ((chan cao) or (chay cao))*.