Perhaps you should try some spelling variations:
huu them » huu thu, huu thuc, huu liem
cham sac » cham soc, pham sach, cap sac
sach ky » sac ky, sach y, sach ty
huu tre » huu tri, cuu tre, huu tien
minh va » tinh va, sinh va, sinh vat
sac van » cac van, san van, sat van
tu sach » thu sach, su sach, te sach
hieu su » hieu sau, tieu su, hieu so
hieu vu » hieu va, hieu ve, dieu vu
nang xa » nang x, lang xa, nang ma

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 sach ky nang xa hoi. ((hieu vu) OR (hieu su)) cham sac van minh va ((huu tre) OR (huu them))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ky nang xa hoi. ((hieu vu) or (hieu su)) cham sac van minh va ((huu tre) OR (huu them))~".
• Adding a wildcard symbol may retrieve word variants: tu sach ky nang xa hoi. ((hieu vu) or (hieu su)) cham sac van minh va ((huu tre) OR (huu them))*.