Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
chau tre » chay tren, chau tho, cau tra
hanh lai » hanh lam, hanh tai, thanh lap
ban hanh » ban hang
cac xuc » cam xuc, cac nuoc, chat xuc
xuc ban » duc ban, cuc ban, quoc ban
cho tre » cho thue, khoe tre
sach ty » sach y, sach tu, sach thu
hieu ve » hieu va, hieu van
ty nang » ky nang, ty xang, ty hang
ve cac » va cac, vien cac
x hoi » o 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 (xa hoi)). hieu ve cac xuc ban hanh lai ((chau tre) OR (cho tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuat sach ty nang ((x hoi) OR (xa hoi)). hieu ve cac xuc ban hanh lai ((chau tre) OR (cho tre))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuat sach ty nang ((x hoi) or (xa hoi)). hieu ve cac xuc ban hanh lai ((chau tre) OR (cho tre))*".