Perhaps you should try some spelling variations:
trinh vat » trinh van, trinh luat, sinh vat
vu sach » vu bach, su sach, vu khach
nang xa » nang x, lang xa, nang ma
hai cuc » tai cuc, hai cua, thai cua
tinh va » tich va, trinh van, tinh gia
cua tre » cua te, cuu tre, cua triet
y nang » ky nang, ly nang, v nang
va hai » van hai, va chai, va khai
cuc va » chuc va, duc va, cuu va

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu sach y nang xa hoi. lieu va hai cuc va ((tinh va) OR (trinh vat)) cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu sach y nang xa hoi. lieu va hai cuc va ((tinh va) OR (trinh vat)) cua tre".
• Adding a wildcard symbol may retrieve word variants: vu sach y nang xa hoi. lieu va hai cuc va ((tinh va) OR (trinh vat)) cua tre*.