Perhaps you should try some spelling variations:
lang cong » dang cong, bang cong, hang cong
canh anh » anh anh, canh tranh, thanh anh
cong dan » cong san, cong tan, huong dan
phan cau » phan cac, phan tu, phan lap
phan dau » phan tu, hang dau
va lang » va nang, hoa lang
anh va » hanh va

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) or (doi khi)) hanh - canh anh va lang cong dan ((phan cau) OR (phan dau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doi chi) OR (doi khi)) hanh - canh anh va lang cong dan ((phan cau) OR (phan dau)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((doi chi) or (doi khi)) hanh - canh anh va lang cong dan ((phan cau) OR (phan dau))".
• Adding a wildcard symbol may retrieve word variants: ((doi chi) or (doi khi)) hanh - canh anh va lang cong dan ((phan cau) OR (phan dau))*.