Perhaps you should try some spelling variations:
hanh manh » hanh mang, hoang manh, thanh minh
lanh manh » lanh tranh, lan anh, van manh
dung cong » dung trong
doc hieu » toc thieu, hoc thieu
cua dung » cua dang, cua dong, qua dung
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh toan
toan cao » toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((hoc hien) or (doc hieu)) xanh - ((hanh manh) OR (lanh manh)) cua dung cong dan toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc hien) OR (doc hieu)) xanh - ((hanh manh) OR (lanh manh)) cua dung cong dan toan cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((hoc hien) or (doc hieu)) xanh - ((hanh manh) OR (lanh manh)) cua dung cong dan toan cao".
• Adding a wildcard symbol may retrieve word variants: ((hoc hien) or (doc hieu)) xanh - ((hanh manh) OR (lanh manh)) cua dung cong dan toan cao*.