Perhaps you should try some spelling variations:
suc viet » su viet, tuc viet, duc viet
cham luc » cham soc, nhan luc, cham cuu
hoi suc » hoi chuc
va danh » va dinh, va dan, dia danh
va hanh » van hanh, va thanh, ban hanh
so sach » so sanh, bo sach, co sach
hieu ve » hieu va, hieu van
cao hoi » cau hoi, co hoi, cao hoc
ty hang » ly hang, ty xang, thi hang
ty nang » ky nang, ty xang, ly nang
ve cham » va cham, ve chat, vu cham

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 ((ty nang) or (ty hang)) cao hoi. hieu ve cham luc ((va hanh) or (va danh)) hoi suc viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach ((ty nang) OR (ty hang)) cao hoi. hieu ve cham luc ((va hanh) OR (va danh)) hoi suc viet.
• Adding a wildcard symbol may retrieve word variants: so sach ((ty nang) or (ty hang)) cao hoi. hieu ve cham luc ((va hanh) or (va danh)) hoi suc viet*.