Perhaps you should try some spelling variations:
loai tren » la tren, thai tren
van thanh » ban thanh, van tuan
cham xuc » cam xuc, chat xuc, cham soc
cau tren » cu tren, dau tren, ca tren
thanh vi » hanh vi, thanh va, thanh ve
thu sach » tu sach, thuat sach, thuoc sach
hieu ve » hieu va, hieu van
xuc van » duc van, luc van, vuc van
ky danh » ky anh
ky dang » ky nang
ve cham » va cham, ve chat, vu cham

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