Perhaps you should try some spelling variations:
van thanh » ban thanh, van tuan
thu sach » tu sach, thuat sach, thuoc sach
cau tren » cu tren, dau tren, ca tren
thanh vi » hanh vi, thanh va, thanh ve
cham xuc » cam xuc, chat xuc, cham soc
van hoe » van hoa, van hoc, van hieu
hieu ve » hieu va, hieu van
ve cham » va cham, ve chat, vu cham
sach ky » sac ky, sach y, sach ty
xuc van » duc van, luc van, vuc van
van hoi » van hoa, van hoc, van loi
la tren » loai tren, dua tren, dat tren

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu sach ky nang ((van hoi) OR (van hoe)). hieu ve cham xuc van thanh vi ((cau tren) or (la tren))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach ky nang ((van hoi) OR (van hoe)). hieu ve cham xuc van thanh vi ((cau tren) OR (la tren)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach ky nang ((van hoi) OR (van hoe)). hieu ve cham xuc van thanh vi ((cau tren) or (la tren))".
• Adding a wildcard symbol may retrieve word variants: thu sach ky nang ((van hoi) OR (van hoe)). hieu ve cham xuc van thanh vi ((cau tren) or (la tren))*.