Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
van cham » van chat, van tham, va cham
danh dai » danh dau, danh di, danh sai
tu sach » thu sach, su sach, te sach
ly nang » ky nang, ly hang, ly vang
va danh » va dinh, va dan, va hanh
dai hoa » dai khoa, dai hoc, dai hoi
y nang » ky nang, v nang, may nang
soc va » hoc va, loc va, doc va

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach ((y nang) OR (ly nang)) xa hoi. hieu van cham soc va danh dai hoa viet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ((y nang) OR (ly nang)) xa hoi. hieu van cham soc va danh dai hoa viet".
• Adding a wildcard symbol may retrieve word variants: tu sach ((y nang) OR (ly nang)) xa hoi. hieu van cham soc va danh dai hoa viet*.