Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
choi dan » hoi dan, hoa dan, hoc dan
chi xanh » chi anh, chi danh, chi hanh
tranh va » tranh van, trang va, trinh va
cong san » cong tac
san chan » san chang, dan chan, san chay
chan cau » phan cau, can cau, chinh cau
chi dan » chi van, thi dan, cuoi dan

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