Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
cang thang » cong thanh, dang thanh
lieu tinh » trieu tinh, diep tinh, bien tinh
thang cua » thong cua, hang cua, than cua
cua nhung » va nhung
cong dang » cong dong, cong dan, cong dung
toan cao » toan ban
toan tap » toan ban
so lieu » so dieu

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

• Performing a fuzzy search may retrieve terms with similar spellings: so lieu tinh - cang thang cua nhung cong dang ((toan cao) or (toan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so lieu tinh - cang thang cua nhung cong dang ((toan cao) OR (toan tap)).
• Adding a wildcard symbol may retrieve word variants: so lieu tinh - cang thang cua nhung cong dang ((toan cao) or (toan tap))*.