Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu xanh
chieu sang » chieu xanh, hieu lang, nhieu tang
nhung cong » dung cong, thong cong, hang cong
than tinh » thanh tinh, than kinh, thai tinh
cong tinh » cong trinh, cong vinh, long tinh
toan tap » toan ban
tinh va » tich va, trinh van, trinh vat

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)) - than tinh va nhung cong tinh toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu sach) OR (chieu sang)) - than tinh va nhung cong tinh toan tap.
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sach) or (chieu sang)) - than tinh va nhung cong tinh toan tap*.