Perhaps you should try some spelling variations:
chieu sang » chieu xanh, hieu lang, nhieu tang
chieu sach » chinh sach, chiet tach, chieu xanh
chieu tinh » trieu tinh, lieu tinh, chau tinh
nhung cong » dung cong, thong cong, hang cong
hanh mang » nhanh mang, hanh trang, nhanh lang
cua nhung » va nhung
mang cua » manh cua, dung cua, ban cua
cong tac » cong ty
tac toan » tap toan, tam toan, hach toan
toan ban » van ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((((chieu sang) OR (chieu sach))) or (chieu tinh)) - hanh mang cua nhung cong tac toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((((chieu sang) OR (chieu sach))) OR (chieu tinh)) - hanh mang cua nhung cong tac toan ban*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((((chieu sang) OR (chieu sach))) or (chieu tinh)) - hanh mang cua nhung cong tac toan ban*".