Perhaps you should try some spelling variations:
hoc thien » hoc hien, hoc thieu, hoc thiet
thien anh » thien danh, tien anh, thien thanh
canh manh » canh tranh, cach mang, van manh
lanh manh » lanh tranh, lan anh, van manh
dung cong » dung trong
cua dung » cua dang, cua dong, qua dung
cong dan » cong san, cong tan, huong dan
toan tai » toan tap, doanh tai, toan ban
toan cao » toan ban, toan tap

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 thien anh - ((canh manh) OR (lanh manh)) cua dung cong dan ((toan tai) OR (toan cao))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thien anh - ((canh manh) OR (lanh manh)) cua dung cong dan ((toan tai) or (toan cao))~".
• Adding a wildcard symbol may retrieve word variants: hoc thien anh - ((canh manh) OR (lanh manh)) cua dung cong dan ((toan tai) or (toan cao))*.