Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
canh trinh » canh tranh, hanh trinh, canh tinh
dung cong » dung trong
thanh lap » thanh san, phan lap, thanh hai
trinh su » trinh tu, trinh san, trinh cau
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: toc thieu xanh - canh trinh su dung cong dan ((thanh lap) OR (phan cau))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc thieu xanh - canh trinh su dung cong dan ((thanh lap) OR (phan cau))".
• Adding a wildcard symbol may retrieve word variants: toc thieu xanh - canh trinh su dung cong dan ((thanh lap) OR (phan cau))*.