Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
va thanh » gia thanh, va tinh, le thanh
cau treo » cau theo, cau tren, cau triet
nang xa » nang x, lang xa, nang ma
hieu va » lieu va, hieu qua
bac hoc » bai hoc, bac ho
cua tre » cua te, cuu tre, cua triet
tu van » tu va
va bac » van bac, va cac, va bai

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

• If you are trying to use Boolean operators, they must be ALL CAPS: tu van ky nang xa hoi. hieu va bac hoc ((va thanh) OR (ban thanh)) di ((cua tre) OR (cau treo))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu van ky nang xa hoi. hieu va bac hoc ((va thanh) OR (ban thanh)) di ((cua tre) or (cau treo))~".
• Adding a wildcard symbol may retrieve word variants: tu van ky nang xa hoi. hieu va bac hoc ((va thanh) OR (ban thanh)) di ((cua tre) or (cau treo))*.