Perhaps you should try some spelling variations:
chat soc » cham soc, chat hoc, chat doc
va thanh » gia thanh, ban thanh, va tinh
tu sach » thu sach, su sach, te sach
nang xa » nang x, lang xa, nang ma
hieu ve » hieu va, hieu van
ve chat » va chat, van chat
y nang » ky nang, ly nang, v nang
soc va » hoc va, loc va, doc va
vi cua » vai cua
di cua » dai cua, doi cua, de cua

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 xa hoi. hieu ve chat soc va thanh ((vi cua) OR (di cua)) triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach y nang xa hoi. hieu ve chat soc va thanh ((vi cua) OR (di cua)) triet".
• Adding a wildcard symbol may retrieve word variants: tu sach y nang xa hoi. hieu ve chat soc va thanh ((vi cua) OR (di cua)) triet*.