Perhaps you should try some spelling variations:
thieu tinh » trieu tinh, chieu tinh, thien tinh
hanh tranh » canh tranh, hanh trinh, hanh trang
tranh cua » doanh cua, manh cua
cua nhung » va nhung
cong hoan » cong hoa, cong san, cong ha
dong hoa » dong hoc, dong co
cong tan » cong tac, cong san, cong thanh

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc thieu tinh - hanh tranh cua nhung ((((cong hoan) OR (dong hoa))) or (cong tan)) phan tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc thieu tinh - hanh tranh cua nhung ((((cong hoan) OR (dong hoa))) OR (cong tan)) phan tu.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc thieu tinh - hanh tranh cua nhung ((((cong hoan) OR (dong hoa))) or (cong tan)) phan tu".
• Adding a wildcard symbol may retrieve word variants: toc thieu tinh - hanh tranh cua nhung ((((cong hoan) OR (dong hoa))) or (cong tan)) phan tu*.