Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
hanh trinh » canh tranh, hanh chinh
trinh chua » trinh chuan, trinh cua, trinh chu
hoc thieu » toc thieu, hoc hien
chua xang » chua nang, chuc nang, chu bang
cong dan » cong san, huong dan, cong dong
cong tan » cong tac, cong san, cong thanh
than cau » toan cau, phan cau, than cap

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc thieu xanh - hanh trinh chua xang ((cong dan) or (cong tan)) than cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - hanh trinh chua xang ((cong dan) OR (cong tan)) than cau.
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - hanh trinh chua xang ((cong dan) or (cong tan)) than cau*.