Perhaps you should try some spelling variations:
cau treo » cau theo, cau tren, cau triet
chat xuc » chat huu, cam xuc, chao xu
vu sach » vu bach, vu khach
ty nang » ky nang, ty xang, ty hang
va chat » van chat, va phat, cao chat
dau thi » cau thi, dan thi, dao thi
cuu tre » cua tre, cau tren
su sach » so sach
xuc va » duc va, tuc va, luc va
va dau » va dao
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: ((su sach) OR (vu sach)) ty nang x hoi. lieu va chat xuc va dau thi ((cuu tre) or (cau treo))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (vu sach)) ty nang x hoi. lieu va chat xuc va dau thi ((cuu tre) OR (cau treo)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su sach) OR (vu sach)) ty nang x hoi. lieu va chat xuc va dau thi ((cuu tre) or (cau treo))".
• Adding a wildcard symbol may retrieve word variants: ((su sach) OR (vu sach)) ty nang x hoi. lieu va chat xuc va dau thi ((cuu tre) or (cau treo))*.