Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu xanh
chieu sang » chieu xanh, hieu lang, nhieu tang
thang cua » thong cua, hang cua, tang cua
dung cong » dung trong
tac thanh » bac thanh, cac thanh, tcc thanh
thanh cao » thanh ca, thanh cac, thanh thao
than cua » nhan cua, thai cua, ban cua
cong tac » cong ty

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 sach) or (chieu sang)) - hanh ((thang cua) or (than cua)) dung cong tac thanh cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu sach) OR (chieu sang)) - hanh ((thang cua) OR (than cua)) dung cong tac thanh cao.
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sach) or (chieu sang)) - hanh ((thang cua) or (than cua)) dung cong tac thanh cao*.