Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
cham tuc » nham thuc, pham thuc, tham thuc
cua tre » cua te, cuu tre, dua tren
hang di » hang doi, hang vi, hang dien
sach ty » sach y, sach tu, sach thu
te sach » toc sach
va cham » va chat, va tham
hieu va » lieu va, hieu qua
ty nang » ky nang, ty xang, ty hang
tuc van » thuc van, truc van, tuc va
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: te sach ty nang x hoi. hieu va cham tuc van ((hang di) or (hanh vi)) ((cua tre) OR (cua triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ty nang x hoi. hieu va cham tuc van ((hang di) OR (hanh vi)) ((cua tre) OR (cua triet))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ty nang x hoi. hieu va cham tuc van ((hang di) or (hanh vi)) ((cua tre) OR (cua triet))*".