Perhaps you should try some spelling variations:
phuong cong » phuong dong, phong cong, phung cong
chieu sang » chieu sach, chieu xanh, hieu lang
chiet tach » chieu sach
trung va » truong va, trang va, trung tam
trung ha » trung hoc, trung tam, trung cap
cong dan » cong san, cong tan, huong dan
dan chan » dan gian, dan ca, van chat
chan cho » chat cho, han cho, chuan chon

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((chieu sang) or (chiet tach)) - thanh ((trung va) OR (trung ha)) phuong cong dan chan cho~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu sang) OR (chiet tach)) - thanh ((trung va) OR (trung ha)) phuong cong dan chan cho.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chieu sang) or (chiet tach)) - thanh ((trung va) OR (trung ha)) phuong cong dan chan cho".
• Adding a wildcard symbol may retrieve word variants: theo ((chieu sang) or (chiet tach)) - thanh ((trung va) OR (trung ha)) phuong cong dan chan cho*.