Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
thong cong » trong cong, tong cong, thong thong
canh tinh » hanh tinh, manh tinh, canh tranh
dung cong » dung trong
chu manh » ho manh, chu han, chu van
tan toan » tan tran, tap toan, van toan
toan cao » toan ban, toan tap
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: theo ((chieu xanh) or (chu manh)) - canh tinh va ((thong cong) or (dung cong)) tan toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu xanh) OR (chu manh)) - canh tinh va ((thong cong) OR (dung cong)) tan toan cao.
• Adding a wildcard symbol may retrieve word variants: theo ((chieu xanh) or (chu manh)) - canh tinh va ((thong cong) or (dung cong)) tan toan cao*.