Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
cac trung » cac truong, dac trung, bac trung
trung va » truong va, trang va, trung ha
ve triet » va trien, su triet
tu sach » thu sach, su sach, te sach
nang xa » nang x, lang xa, nang ma
hieu ve » hieu van
hieu va » lieu va, hieu qua
va hanh » van hanh, va thanh, va danh
y nang » ky nang, ly nang, v nang

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) OR (hieu va)) cac trung va hanh vi ((cua triet) OR (ve triet))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach y nang xa hoi. ((hieu ve) OR (hieu va)) cac trung va hanh vi ((cua triet) OR (ve triet))*".