Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
hanh trang » thanh trung, canh tranh, hanh trinh
trang tran » trang trai, trung tran, trang tuan
trong mach » trong minh, trong anh, trong dich
hoc thieu » toc thieu, hoc hien
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 thieu xanh - hanh trang tran quang ((trong mach) OR (trong cac)) toan cao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu xanh - hanh trang tran quang ((trong mach) OR (trong cac)) toan cao".
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - hanh trang tran quang ((trong mach) OR (trong cac)) toan cao*.