Perhaps you should try some spelling variations:
nhieu tang » hieu lang, nhiet nang
chieu sang » chieu sach, chieu xanh, hieu lang
canh manh » lanh manh, canh tranh, cach mang
manh cua » doanh cua, ban cua
cua dung » cua dang, cua dong, qua dung
cong san » cong tac
toan cao » toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((nhieu tang) or (chieu sang)) - canh manh cua dung ((cong san) or (huong dan)) toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((nhieu tang) OR (chieu sang)) - canh manh cua dung ((cong san) OR (huong dan)) toan cao.
• Adding a wildcard symbol may retrieve word variants: hoc ((nhieu tang) or (chieu sang)) - canh manh cua dung ((cong san) or (huong dan)) toan cao*.