Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
truong va » truong dai, truong cao, truong dao
chi xanh » chi anh, chi danh, chi hanh
trung va » trang va, trung ha, trung tam
cong ban » cong bang, cong san, cong tan
ban phan » ban phap, van phan, ban than
doi chi » doi khi

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi chi xanh - thanh ((trung va) OR (truong va)) nhung cong ban phan tu~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chi xanh - thanh ((trung va) OR (truong va)) nhung cong ban phan tu".
• Adding a wildcard symbol may retrieve word variants: doi chi xanh - thanh ((trung va) OR (truong va)) nhung cong ban phan tu*.