Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
ban hang » ngan hang
hang tri » hang tai, lang tri, nang tri
nang xa » nang x, lang xa, nang ma
vu cham » va cham, vu kham, tu cham
tuc ban » thuc ban, truc ban, tu ban
cua tre » cuu tre, cua triet, dua tren
y nang » ky nang, ly nang, v nang
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: thuat sach y nang xa hoi. hieu ((vu cham) or (cao chat)) tuc ban hang tri ((cua tre) or (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuat sach y nang xa hoi. hieu ((vu cham) OR (cao chat)) tuc ban hang tri ((cua tre) OR (cua te)).
• Adding a wildcard symbol may retrieve word variants: thuat sach y nang xa hoi. hieu ((vu cham) or (cao chat)) tuc ban hang tri ((cua tre) or (cua te))*.