Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
van thanh » ban thanh
hieu van » hieu va, thien van, lieu va
van tuan » van quan, van ban, anh tuan
vu sach » vu bach, su sach, vu khach
van cam » van nam, van lam, van cau
cua tre » cua te, cuu tre, dua tren
y nang » ky nang, ly nang, v nang
x hoi » xa hoi, o hoi, x ho

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 x hoi. hieu van cam xuc ((van thanh) OR (van tuan)) san ((cua tre) or (cua triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sach y nang x hoi. hieu van cam xuc ((van thanh) OR (van tuan)) san ((cua tre) OR (cua triet)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu sach y nang x hoi. hieu van cam xuc ((van thanh) OR (van tuan)) san ((cua tre) or (cua triet))".
• Adding a wildcard symbol may retrieve word variants: vu sach y nang x hoi. hieu van cam xuc ((van thanh) OR (van tuan)) san ((cua tre) or (cua triet))*.