Perhaps you should try some spelling variations:
cong thanh » dong thanh, cong trinh, cong tan
tranh cua » doanh cua, manh cua
theo chu » theo chieu, cho chu, chao chu
chu xanh » chu manh, chieu xanh, chua xang
tang cua » mang cua, hang cua, tang luan
cong dan » cong san, cong tan, huong dan
chan cau » phan cau, can cau, chinh cau

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo chu xanh - hanh ((tang cua) or (tranh cua)) nhung ((cong dan) or (cong thanh)) chan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chu xanh - hanh ((tang cua) OR (tranh cua)) nhung ((cong dan) OR (cong thanh)) chan cau.
• Adding a wildcard symbol may retrieve word variants: theo chu xanh - hanh ((tang cua) or (tranh cua)) nhung ((cong dan) or (cong thanh)) chan cau*.