Perhaps you should try some spelling variations:
chieu tinh » trieu tinh, lieu tinh, chau tinh
hanh trinh » canh tranh, hanh chinh
trinh quan » tinh quang, trinh luat, trinh han
quan dang » quang dang, quan lang, quan dong
dang cong » dung cong
ho chieu » theo chieu, hoc thieu, doi chieu
cong san » cong tac
phan dau » phan tu, hang dau

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 - hanh trinh quan dang cong san ((phan lap) or (phan dau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu tinh - hanh trinh quan dang cong san ((phan lap) OR (phan dau)).
• Adding a wildcard symbol may retrieve word variants: ho chieu tinh - hanh trinh quan dang cong san ((phan lap) or (phan dau))*.