Perhaps you should try some spelling variations:
tham soc » tham nuoc, thai son, ham so
dinh dai » dinh dat, sinh dai, dinh dao
cua viet » ca viet, hoa viet, cua vat
so sach » so sanh, bo sach, co sach
va dinh » van dinh, va kinh, va tinh
y nang » ky nang, ly nang, v nang
ma hoi » mai hoi, ma hoa, me hoi

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

• Performing a fuzzy search may retrieve terms with similar spellings: so sach y nang ((ma hoi) or (xa hoi)). lieu va ((tham soc) or (cham soc)) va dinh dai cua viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach y nang ((ma hoi) OR (xa hoi)). lieu va ((tham soc) OR (cham soc)) va dinh dai cua viet.
• Adding a wildcard symbol may retrieve word variants: so sach y nang ((ma hoi) or (xa hoi)). lieu va ((tham soc) or (cham soc)) va dinh dai cua viet*.