Perhaps you should try some spelling variations:
tien manh » tien anh, tien thanh, tieng anh
hanh tung » thanh tung, manh tung, hanh dung
cong cong » cong dong, trong cong, dung cong
hoc tien » hoc tieng, hoc hien, hoc vien
anh dang » anh dung, anh bang, anh danh
anh dong » anh huong, anh son
cong dan » cong san, cong tan, huong dan
dan phan » doan phan, dan chan, van phan
phan cau » phan dau, phan cac, phan tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc tien manh - ((hanh tung) or (((anh dang) or (anh dong)))) cua cong cong dan phan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc tien manh - ((hanh tung) OR (((anh dang) OR (anh dong)))) cua cong cong dan phan cau.
• Adding a wildcard symbol may retrieve word variants: hoc tien manh - ((hanh tung) or (((anh dang) or (anh dong)))) cua cong cong dan phan cau*.