Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu tinh, hieu manh
chieu sang » chieu sach, hieu lang, nhieu tang
dung duong » dung dong, dong duong, dung dung
trong cua » truong cua, thong cua, trong qua
duong anh » duong manh, duong xanh, duong vanh
trong ca » trong cac, trong nha
anh toan » manh toan, anh tuan, thanh 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: hoc ((chieu xanh) OR (chieu sang)) - hanh ((trong cua) or (trong ca)) dung duong anh toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((chieu xanh) OR (chieu sang)) - hanh ((trong cua) OR (trong ca)) dung duong anh toan cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((chieu xanh) OR (chieu sang)) - hanh ((trong cua) or (trong ca)) dung duong anh toan cao".
• Adding a wildcard symbol may retrieve word variants: hoc ((chieu xanh) OR (chieu sang)) - hanh ((trong cua) or (trong ca)) dung duong anh toan cao*.