Perhaps you should try some spelling variations:
lieu tinh » trieu tinh, diep tinh, bien tinh
chua dong » ha dong, huy dong, hoa dong
cua dong » cua cong, cua dang, cua nong
cong tan » cong tac, cong san, cong thanh
phan cau » phan dau, phan tu, phan lap
phan cac » nhan cach, phan dau, phan lap
so lieu » so dieu

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

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