Perhaps you should try some spelling variations:
phuong duong » phuong dung, chuong duong, phuong dong
duong manh » duong van
tang mach » trong mach, tang ma, tinh mach
manh toan » thanh toan, anh tuan, tinh toan
ban mach » ban sach, ranh mach, ban hanh
toan cao » toan ban, toan tap
he xanh » heo xanh, hoc xanh
cho he » cho thue

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: cho he xanh - hanh ((((tang mach) or (ban mach))) or (tinh cach)) phuong duong manh toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: cho he xanh - hanh ((((tang mach) OR (ban mach))) OR (tinh cach)) phuong duong manh toan cao.
• Adding a wildcard symbol may retrieve word variants: cho he xanh - hanh ((((tang mach) or (ban mach))) or (tinh cach)) phuong duong manh toan cao*.