Perhaps you should try some spelling variations:
khien tinh » thien tinh, khien thich, bien tinh
hanh tranh » canh tranh, hanh trinh, hanh trang
hoc khien » hoc hien, hoc nghien, hoc thieu
tranh cua » doanh cua, manh cua
cua trung » cua truong, xuan trung, cua nhung
cong doan » dong doanh, cong san, cong dong
cong hoan » cong hoa, dong hoa, cong san
cong dan » cong san, cong tan, huong dan
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 khien tinh - hanh tranh cua trung ((((cong doan) OR (cong hoan))) or (cong dan)) phan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc khien tinh - hanh tranh cua trung ((((cong doan) OR (cong hoan))) OR (cong dan)) phan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc khien tinh - hanh tranh cua trung ((((cong doan) OR (cong hoan))) or (cong dan)) phan cau".
• Adding a wildcard symbol may retrieve word variants: hoc khien tinh - hanh tranh cua trung ((((cong doan) OR (cong hoan))) or (cong dan)) phan cau*.