Perhaps you should try some spelling variations:
nhanh mang » nhanh lang, hanh mang, nhanh quang
hanh tang » hanh trang, anh tang, hanh mang
cua nhung » va nhung
theo kha » theo phap, thao khoa, theo chu
kha nang » phap nang, ky nang, ki nang
cong dan » cong san, cong tan, cong dong
toan cau » 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: theo kha nang - ((hanh tang) OR (nhanh mang)) cua nhung ((cong dan) OR (huong dan)) toan cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo kha nang - ((hanh tang) or (nhanh mang)) cua nhung ((cong dan) OR (huong dan)) toan cau~".
• Adding a wildcard symbol may retrieve word variants: theo kha nang - ((hanh tang) or (nhanh mang)) cua nhung ((cong dan) OR (huong dan)) toan cau*.