Perhaps you should try some spelling variations:
su sach » so sach, vu sach
ty nang » ty xang, ty hang, ly nang
hieu ve » hieu va, hieu van
va tinh » may tinh
tinh du » tinh duc, tinh dau, tich du
cua tuc » cua duc, cua thuoc, luat tuc
ve cam » ve cham, ve cac, va cam
xuc va » duc va, tuc va, luc va
cua tu » cua su, cua cu, cua te

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 ((ty nang) OR (ky nang)) xa hoi. hieu ve cam xuc va tinh du ((cua tu) OR (cua tuc))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ((ty nang) or (ky nang)) xa hoi. hieu ve cam xuc va tinh du ((cua tu) OR (cua tuc))~".
• Adding a wildcard symbol may retrieve word variants: su sach ((ty nang) or (ky nang)) xa hoi. hieu ve cam xuc va tinh du ((cua tu) OR (cua tuc))*.