Perhaps you should try some spelling variations:
chieu sang » chieu xanh, hieu lang, nhieu tang
chieu sach » chinh sach, chiet tach, chieu xanh
thanh tung » thanh cong
cap thuong » chap thuong, ca thuong, cao thuong
tung cap » trung cap, cung cap, thong cap
cong dan » cong san, huong dan, cong dong
cong tan » cong tac, cong san, cong thanh
phan dau » phan tu, hang dau

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((chieu sang) or (chieu sach)) - thanh tung cap thuong ((cong dan) or (cong tan)) phan dau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu sang) OR (chieu sach)) - thanh tung cap thuong ((cong dan) OR (cong tan)) phan dau.
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sang) or (chieu sach)) - thanh tung cap thuong ((cong dan) or (cong tan)) phan dau*.