Perhaps you should try some spelling variations:
su sach » so sach, vu sach
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
cam tuc » cam xuc, nam thuc, dam thuc
va hanh » van hanh, va thanh, va danh
luu tre » luu tru, cuu tre, luy tre
cam tu » cam thu, nam tu, dam tu
vi luu » vi lua

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ky nang xa hoi. hieu qua ((cam tuc) OR (cam tu)) va hanh vi luu tre~".
• Adding a wildcard symbol may retrieve word variants: su sach ky nang xa hoi. hieu qua ((cam tuc) OR (cam tu)) va hanh vi luu tre*.