Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
hanh hanh » hanh han, xanh hanh, nhanh thanh
chi xanh » chi anh, chi danh, chi hanh
cong dan » cong san, cong tan, huong dan
than cau » toan cau, than cap, thanh chau
phan cau » phan dau, phan cac, phan tu
doi chi » doi khi
hanh va » hang va, hanh vi

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

• If you are trying to use Boolean operators, they must be ALL CAPS: doi chi xanh - hanh hanh va nhung cong dan ((than cau) OR (phan cau))~.
• Adding a wildcard symbol may retrieve word variants: doi chi xanh - hanh hanh va nhung cong dan ((than cau) or (phan cau))*.