Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
chieu xanh » chieu sang, chieu tinh, hieu manh
hanh trinh » canh tranh, hanh chinh
hien hanh » dieu hanh
trinh han » trinh quan
hanh dong » anh dong, ha dong
han hanh » ban hanh, van hanh, han danh
dong dan » dong danh, duong dan, dong san
dan phan » doan phan, dan chan, van phan

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 xanh) or (hien hanh))) or (chieu sach)) - hanh trinh han hanh dong dan phan tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((((chieu xanh) OR (hien hanh))) OR (chieu sach)) - hanh trinh han hanh dong dan phan tu.
• Adding a wildcard symbol may retrieve word variants: ho ((((chieu xanh) or (hien hanh))) or (chieu sach)) - hanh trinh han hanh dong dan phan tu*.