Perhaps you should try some spelling variations:
hanh trung » thanh trung, hanh trang, manh trung
phan hieu » van hieu, phan kien, gian hieu
hieu lang » chieu sang, hieu quang, nhieu tang
trung cua » truong cua, trung tuan, trung cap
cong dan » cong tan, huong dan, cong dong
cong san » cong tac
toan cao » toan ban
toan tap » toan ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: phan hieu lang - hanh trung cua cong ((cong dan) or (cong san)) ((toan cao) or (toan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: phan hieu lang - hanh trung cua cong ((cong dan) OR (cong san)) ((toan cao) OR (toan tap)).
• Adding a wildcard symbol may retrieve word variants: phan hieu lang - hanh trung cua cong ((cong dan) or (cong san)) ((toan cao) or (toan tap))*.