Perhaps you should try some spelling variations:
va triet » va thiet, va trien, ve triet
su sach » so sach, vu sach
nang xa » nang x, lang xa, nang ma
qua cam » qua cham, qua cac, qua ca
truc va » thuc vat, trung va
thuc va » thuc vat, thuc dan, thuc day
danh vi » hanh vi, dinh vi, danh di
y nang » ky nang, ly nang, v nang
vi va » vi van, vai va, vu va

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 xa hoi. hieu qua cam ((truc va) OR (thuc va)) danh vi va triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach y nang xa hoi. hieu qua cam ((truc va) OR (thuc va)) danh vi va triet".
• Adding a wildcard symbol may retrieve word variants: su sach y nang xa hoi. hieu qua cam ((truc va) OR (thuc va)) danh vi va triet*.