Perhaps you should try some spelling variations:
canh thanh » canh tranh, danh thanh, anh thanh
thanh qua » thanh quan, thanh qui, hanh qua
dung cong » dung trong
chi xanh » chi anh, chi danh, chi hanh
qua dung » quang dung, su dung, qua song
cong dan » cong san, cong tan, huong dan
than cau » than cap, thanh chau, thanh mau
toan cau » toan cao, toan ban, toan tap
phan cau » phan dau, phan cac, phan tu
doi chi » doi khi

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi chi xanh - canh thanh qua dung cong dan ((((than cau) or (toan cau))) or (phan cau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chi xanh - canh thanh qua dung cong dan ((((than cau) OR (toan cau))) OR (phan cau)).
• Adding a wildcard symbol may retrieve word variants: doi chi xanh - canh thanh qua dung cong dan ((((than cau) or (toan cau))) or (phan cau))*.