Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
canh trinh » canh tranh, canh tinh, anh trinh
hanh trinh » canh tranh, hanh chinh
dung cong » dung trong
thanh cac » hanh cac, thanh bac, thanh ca
qua dung » quang dung, su dung, qua song
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) OR (hanh trinh)) qua dung cong dan ((thanh cac) or (phan cau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc thieu xanh - ((canh trinh) OR (hanh trinh)) qua dung cong dan ((thanh cac) OR (phan cau)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc thieu xanh - ((canh trinh) OR (hanh trinh)) qua dung cong dan ((thanh cac) or (phan cau))".
• Adding a wildcard symbol may retrieve word variants: toc thieu xanh - ((canh trinh) OR (hanh trinh)) qua dung cong dan ((thanh cac) or (phan cau))*.