Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
doi chieu » doc hieu, doi chi, ho chieu
tranh cua » doanh cua
trong ban » trong san, trong tan, trong quan
manh cua » doanh cua, ban cua
ban toan » bai toan, ban than, van toan
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: doi chieu xanh - hanh ((tranh cua) OR (manh cua)) dung trong ban toan cao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chieu xanh - hanh ((tranh cua) OR (manh cua)) dung trong ban toan cao".
• Adding a wildcard symbol may retrieve word variants: doi chieu xanh - hanh ((tranh cua) OR (manh cua)) dung trong ban toan cao*.