Perhaps you should try some spelling variations:
cong thanh » dong thanh, cong trinh, cong tan
cua nhung » va nhung
theo chu » theo chieu, cho chu, chao chu
chu xanh » chu manh, chieu xanh, chua xang
dung cua » dung luan, dung cho
cong dan » cong san, cong tan, huong dan
than cao » toan cao, thai cao, than sao
than cap » khan cap, thanh lap, thanh cac

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 - sach dung cua nhung ((cong dan) or (cong thanh)) ((than cao) or (than cap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chu xanh - sach dung cua nhung ((cong dan) OR (cong thanh)) ((than cao) OR (than cap)).
• Adding a wildcard symbol may retrieve word variants: theo chu xanh - sach dung cua nhung ((cong dan) or (cong thanh)) ((than cao) or (than cap))*.