Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh, hieu lang
hanh tranh » canh tranh, hanh trang, lanh tranh
hanh trinh » canh tranh, hanh chinh
doi chieu » doc hieu, doi chi, ho chieu
dung cong » dung trong
cua dung » cua dang, cua dong, qua dung
cong dan » cong san, cong tan, huong dan
dan thai » dang thai, dan thi, dan than
thai cao » tai cao, thoai cac, thuat cao

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi chieu sang - ((hanh tranh) OR (hanh trinh)) cua dung cong dan thai cao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chieu sang - ((hanh tranh) OR (hanh trinh)) cua dung cong dan thai cao".
• Adding a wildcard symbol may retrieve word variants: doi chieu sang - ((hanh tranh) OR (hanh trinh)) cua dung cong dan thai cao*.