Perhaps you should try some spelling variations:
cong thanh » dong thanh, cong trinh, cong tan
tang luan » dung luan
chao chu » cho chu, cua chu, cao cho
chu xanh » chu manh, chieu xanh, chua xang
tang cua » mang cua, hang cua, thong cua
cong tac » cong ty
toan tap » toan ban

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

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