Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
chieu xanh » chieu sach, chieu sang, chieu tinh
hieu manh » hieu nganh, dieu hanh, hieu van
hien hanh » dieu hanh
trinh qua » trinh quan, trinh cua, trinh quang
trong van » trong cac
qua dung » quang dung, su dung, qua song
van tan » van tuan, van ban, van tai
tan tat » ban tat, toan tap, toan tai

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

• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((((hieu manh) OR (hien hanh))) OR (chieu xanh)) - hanh trinh qua dung trong van tan tat~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((((hieu manh) OR (hien hanh))) or (chieu xanh)) - hanh trinh qua dung trong van tan tat~".
• Adding a wildcard symbol may retrieve word variants: hoc ((((hieu manh) OR (hien hanh))) or (chieu xanh)) - hanh trinh qua dung trong van tan tat*.