Perhaps you should try some spelling variations:
pham chieu » phan hieu, pham hiep, phap hieu
chieu sang » chieu sach, chieu xanh, hieu lang
hanh tranh » canh tranh, hanh trinh, hanh trang
cong toan » cong tan, cong hoan, cong tuan
cua dang » cua cong, cua ban
toan tap » toan ban
ha dong » hoat dong, van dong

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

• Performing a fuzzy search may retrieve terms with similar spellings: pham chieu sang - hanh tranh ((cua dang) or (ha dong)) trong cong toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: pham chieu sang - hanh tranh ((cua dang) OR (ha dong)) trong cong toan tap.
• Adding a wildcard symbol may retrieve word variants: pham chieu sang - hanh tranh ((cua dang) or (ha dong)) trong cong toan tap*.