Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
luat chung » luan chung, luat thuong, luat cong
hien tach » thien hach, chiet tach, vien bach
cua chung » cua nhung, luan chung, cua cong
cong nong » cong dong, cong cong, cong trong
nong toan » bong toan, cong toan, nong tan
toan cao » toan ban, toan tap

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc hien tach - hanh trinh ((luat chung) OR (cua chung)) cong nong toan cao~".
• Adding a wildcard symbol may retrieve word variants: hoc hien tach - hanh trinh ((luat chung) OR (cua chung)) cong nong toan cao*.