Perhaps you should try some spelling variations:
trong duong » tuong duong, thong duong, trong dong
thanh trung » thanh tung
chieu xanh » chieu sach, chieu sang, chieu tinh
duong manh » duong van
hien xanh » hien hanh, hien nhanh, hien khanh
manh toan » thanh toan, anh tuan, tinh toan
trung va » truong va, trang va, trung ha
va trong » va truong, va thong, va tuong
toan cau » 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 ((hien xanh) OR (chieu xanh)) - thanh trung va trong duong manh toan cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((hien xanh) OR (chieu xanh)) - thanh trung va trong duong manh toan cau".
• Adding a wildcard symbol may retrieve word variants: hoc ((hien xanh) OR (chieu xanh)) - thanh trung va trong duong manh toan cau*.