Perhaps you should try some spelling variations:
ky trong » ly trong, ke trong, cay trong
trong ha » trong nha, trong hai, trong hao
thuc dan » thuc hanh, hoc dan, thuc vat
hieu ve » hieu va, hieu van
thu dan » thu dang, thu ban, thu san
vai cua » dai cua, hai cua, lai cua
ha hoi » hoa hoi, ha noi, xa hoi
ve nam » he nam, va nam, le nam
di cua » dai cua, doi cua, de cua

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

• If you are trying to use Boolean operators, they must be ALL CAPS: tu cac ky trong ha hoi. hieu ve nam ((thu dan) OR (thuc dan)) hanh ((di cua) OR (vai cua)) triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu cac ky trong ha hoi. hieu ve nam ((thu dan) OR (thuc dan)) hanh ((di cua) or (vai cua)) triet~".
• Adding a wildcard symbol may retrieve word variants: tu cac ky trong ha hoi. hieu ve nam ((thu dan) OR (thuc dan)) hanh ((di cua) or (vai cua)) triet*.