Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
hang lai » hang tai, hang hai, hang loi
ban hang » ngan hang
chat xuc » chat huu, cam xuc, chao xu
chau tre » chay tren, chau tho, cho tre
sach ty » sach y, sach tu, sach thu
ty nang » ky nang, ty xang, ty hang
hieu ve » hieu va, hieu van
o hoi » co hoi, o hoc, o hai
x hoi » xa hoi, x ho, 5 hoi

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 ty nang ((x hoi) OR (o hoi)). hieu ve ((chat xuc) or (cham soc)) ban hang lai chau tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuat sach ty nang ((x hoi) OR (o hoi)). hieu ve ((chat xuc) OR (cham soc)) ban hang lai chau tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuat sach ty nang ((x hoi) OR (o hoi)). hieu ve ((chat xuc) or (cham soc)) ban hang lai chau tre".
• Adding a wildcard symbol may retrieve word variants: thuat sach ty nang ((x hoi) OR (o hoi)). hieu ve ((chat xuc) or (cham soc)) ban hang lai chau tre*.