Perhaps you should try some spelling variations:
va thanh » gia thanh, ban thanh, va tinh
su sach » so sach, vu sach
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
van cac » van cau, van bac, dan cac
van hac » van hoc, van ha, van hai
thuc va » thuc vat, thuc dan, thuc day
vai cua » dai cua, lai cua, bai cua
hai cua » thai cua, dai cua, hoi 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: su sach ky nang xa hoi. hieu ((van cac) OR (van hac)) thuc va thanh ((vai cua) OR (hai cua)) te~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ky nang xa hoi. hieu ((van cac) or (van hac)) thuc va thanh ((vai cua) OR (hai cua)) te~".
• Adding a wildcard symbol may retrieve word variants: su sach ky nang xa hoi. hieu ((van cac) or (van hac)) thuc va thanh ((vai cua) OR (hai cua)) te*.