Perhaps you should try some spelling variations:
tham soc » tham nuoc, thai son, ham so
cua viet » ca viet, hoa viet, cua vat
su sach » so sach, vu sach
nang ma » tang ma, sang ma, nang cao
va danh » va dinh, va dan, va hanh
danh vi » hanh vi, dinh vi, danh di
y nang » ky nang, ly nang, v nang
ma hoi » mai hoi, xa hoi, ma hoa
vi cua » vai cua, di cua

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

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