Perhaps you should try some spelling variations:
cong thanh » dong thanh, cong trinh, cong tan
tang luan » dung luan
theo chu » theo chieu, cho chu, chao chu
chu xanh » chu manh, chieu xanh, chua xang
hang cua » mang cua, hang ca, huong cua
cong san » cong tac
tran cau » tran chau, toan cau, ran 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 luan) or (hang cua)) nhung ((cong thanh) or (cong san)) tran cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chu xanh - hanh ((tang luan) OR (hang cua)) nhung ((cong thanh) OR (cong san)) tran cau.
• Adding a wildcard symbol may retrieve word variants: theo chu xanh - hanh ((tang luan) or (hang cua)) nhung ((cong thanh) or (cong san)) tran cau*.