Perhaps you should try some spelling variations:
dau tren » dau tien, dat tren, dau tieng
cham xuc » cam xuc, chat xuc, cham soc
lang mai » lang dai, lang hai, lang man
hanh vai » hanh vi, hanh tai, hanh van
ca tren » cau tren, cu tren, la tren
hanh va » hang va, hanh vi
tu sach » thu sach, su sach, te sach
sach ky » sac ky, sach y, sach ty
ve cham » va cham, ve chat, vu cham
hieu ve » hieu va, hieu van
mai hoi » mai khoi, dai hoi, lai hoi
ky lang » ky nang, ky dang, ky tang
xuc va » duc va, tuc va, luc va

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach ky lang mai hoi. hieu ve cham xuc va ((hanh vai) or (hanh va)) ((ca tren) or (dau tren))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky lang mai hoi. hieu ve cham xuc va ((hanh vai) OR (hanh va)) ((ca tren) OR (dau tren)).
• Adding a wildcard symbol may retrieve word variants: tu sach ky lang mai hoi. hieu ve cham xuc va ((hanh vai) or (hanh va)) ((ca tren) or (dau tren))*.