Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu xanh
chieu sang » chieu xanh, hieu lang, nhieu tang
toan khoan » toan khoa, toan phan, toan hoat
dung cong » dung trong
cong toan » cong tan, cong hoan, cong tuan
khoan cap » khoan cam, khan cap, khoa cap
tang cua » mang cua, hang cua, tang luan
ban cua » ban quan

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)) - anh ((tang cua) or (ban cua)) dung cong toan khoan cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu sach) OR (chieu sang)) - anh ((tang cua) OR (ban cua)) dung cong toan khoan cap.
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sach) or (chieu sang)) - anh ((tang cua) or (ban cua)) dung cong toan khoan cap*.