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
chat xuc » chat huu, cam xuc, chao xu
hieu ve » hieu va, hieu van
ve chat » va chat, van chat
xuc van » duc van, luc van, xuc ban
ky dang » ky nang, ky danh
ky lang » ky nang, ky tang, tay lang
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 lang) OR (ky dang)) xa hoi. hieu ve chat 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 lang) OR (ky dang)) xa hoi. hieu ve chat 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 lang) OR (ky dang)) xa hoi. hieu ve chat xuc van thanh vi ((cau tren) or (la tren))".
• Adding a wildcard symbol may retrieve word variants: thu sach ((ky lang) OR (ky dang)) xa hoi. hieu ve chat xuc van thanh vi ((cau tren) or (la tren))*.