Perhaps you should try some spelling variations:
tru ban » truc ban, thu ban, tri ban
vai cua » dai cua, hai cua, lai cua
sanh ky » hanh ky, sang ky, nganh ky
so sanh » do sanh
hieu ve » hieu va, hieu van
nang ma » tang ma, sang ma, nang cao
ve cac » va cac, vien cac
tu ban » thu ban, te ban
ma hoi » mai hoi, xa hoi, ma hoa
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: so sanh ky nang ma hoi. hieu ve cac ((tru ban) OR (tu ban)) thanh ((di cua) OR (vai cua)) triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "so sanh ky nang ma hoi. hieu ve cac ((tru ban) OR (tu ban)) thanh ((di cua) or (vai cua)) triet~".
• Adding a wildcard symbol may retrieve word variants: so sanh ky nang ma hoi. hieu ve cac ((tru ban) OR (tu ban)) thanh ((di cua) or (vai cua)) triet*.