Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
trung cap » truong cao
cheo cua » cho cua, chuoi cua, co cua
cua tinh » cua sinh, va tinh, ha tinh
cong dan » cong san, cong tan, huong dan
chan cao » chan cho, chat cao, chay cao
cay cao » chay cao, cay co, tay cao

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

• Performing a fuzzy search may retrieve terms with similar spellings: cheo cua tinh - hanh ((trung cap) OR (trung tam)) nhung cong dan ((chan cao) or (cay cao))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: cheo cua tinh - hanh ((trung cap) OR (trung tam)) nhung cong dan ((chan cao) OR (cay cao)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "cheo cua tinh - hanh ((trung cap) OR (trung tam)) nhung cong dan ((chan cao) or (cay cao))".
• Adding a wildcard symbol may retrieve word variants: cheo cua tinh - hanh ((trung cap) OR (trung tam)) nhung cong dan ((chan cao) or (cay cao))*.