Perhaps you should try some spelling variations:
thanh phan » thanh pho, thanh san, thanh toan
chieu sang » chieu sach, chieu xanh, hieu lang
phan dong » phan cong, phan dang, phan hong
dong cong » duong cong, dung cong, dang cong
cong dung » cuong dung, cong dong, cong luong
dung dat » dung va, dung tai
dat phan » data phan, dam phan, sat phan
phan lap » phan dau
hieu ca » hieu cac, hieu cua, hieu va

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

• Performing a fuzzy search may retrieve terms with similar spellings: doc ((chieu sang) OR (hieu ca)) - thanh phan dong cong dung dat phan lap~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doc ((chieu sang) OR (hieu ca)) - thanh phan dong cong dung dat phan lap*".