Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu tinh, hieu manh
chieu sang » chieu sach, hieu lang, nhieu tang
hanh tram » hanh tam, hanh trang, thanh tran
tac thanh » bac thanh, cac thanh, tcc thanh
thanh cao » thanh ca, thanh cac, thanh thao
van dung » xay dung, tin dung
cong tac » cong ty

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu xanh) OR (chieu sang)) - hanh tram ((van dung) OR (van dong)) cong tac thanh cao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu xanh) or (chieu sang)) - hanh tram ((van dung) OR (van dong)) cong tac thanh cao~".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu xanh) or (chieu sang)) - hanh tram ((van dung) OR (van dong)) cong tac thanh cao*.