Perhaps you should try some spelling variations:
van triet » va triet, van thiet, van trieu
hoc sach » hoc sinh, hoc cac, hoc anh
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
hanh vu » hanh vi, hanh va, hanh tu
bo sach » co sach
y nang » ky nang, ly nang, v nang
vu van » tu van

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((bo sach) or (hoc sach)) y nang xa hoi. hieu qua cam ((truc va) OR (thuc va)) hanh vu van triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((bo sach) OR (hoc sach)) y nang xa hoi. hieu qua cam ((truc va) OR (thuc va)) hanh vu van triet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((bo sach) or (hoc sach)) y nang xa hoi. hieu qua cam ((truc va) OR (thuc va)) hanh vu van triet*".