Perhaps you should try some spelling variations:
phuong cong » phuong dong, phong cong, phung cong
chieu sang » chieu sach, chieu xanh, nhieu tang
thanh tinh » thanh binh, nhanh tinh, than kinh
hoang manh » hoang minh, hoang anh, hoang xanh
cua phuong » cuu phuong, cuc phuong, luan phuong
hieu lang » hieu quang, nhieu tang, hieu van
cong tac » cong ty
tac tran » tan tran, tac trai, tac tren
tran cao » toan cao, tran chau, trang cho

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((chieu sang) OR (hieu lang)) - ((thanh tinh) or (hoang manh)) cua phuong cong tac tran cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu sang) OR (hieu lang)) - ((thanh tinh) OR (hoang manh)) cua phuong cong tac tran cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu sang) OR (hieu lang)) - ((thanh tinh) or (hoang manh)) cua phuong cong tac tran cao".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sang) OR (hieu lang)) - ((thanh tinh) or (hoang manh)) cua phuong cong tac tran cao*.