Perhaps you should try some spelling variations:
xuong trong » duong trong, luong trong, xung trong
canh tinh » hanh tinh, manh tinh, canh tranh
trong van » trong cac
doi chau » doi chieu, gioi chau, lai chau
va xuong » va tuong, va huong, va duong
van toan » van tuan, van tan, van thanh
toan cao » toan ban, toan tap
hoi chu » hoi chuc
tinh va » tich va, trinh van, trinh vat

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((doi chau) or (hoi chu)) tinh - canh tinh va xuong trong van toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doi chau) OR (hoi chu)) tinh - canh tinh va xuong trong van toan cao.
• Adding a wildcard symbol may retrieve word variants: ((doi chau) or (hoi chu)) tinh - canh tinh va xuong trong van toan cao*.