Perhaps you should try some spelling variations:
chua tri » chu tri, chua trieu, chua tivi
hieu van » hieu va, thien van, lieu va
chua tre » cua tre, chua trieu, cho tre
thanh va » thanh van, hanh va, thanh ha
va thanh » gia thanh, ban thanh, va tinh
cau tuc » cau truc, cau tu, cau luc
vu sach » vu bach, su sach, vu khach
ty nang » ky nang, ty hang, ly nang
van cau » van dau, van hau, van chat
tuc va » thuc va, truc va, tuc xa
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 ((ty nang) OR (ty xang)) x hoi. hieu van cau tuc va thanh va ((chua tre) or (chua tri))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sach ((ty nang) OR (ty xang)) x hoi. hieu van cau tuc va thanh va ((chua tre) OR (chua tri)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu sach ((ty nang) OR (ty xang)) x hoi. hieu van cau tuc va thanh va ((chua tre) or (chua tri))".
• Adding a wildcard symbol may retrieve word variants: vu sach ((ty nang) OR (ty xang)) x hoi. hieu van cau tuc va thanh va ((chua tre) or (chua tri))*.