Perhaps you should try some spelling variations:
cham xuc » cam xuc, chat xuc, cham soc
hieu ve » hieu va, hieu van
ve cham » va cham, ve chat, vu cham
va phan » van phan, va phat, va phap
sac ky » cac ky, sai ky
va han » van han, va hanh, va hang
tai va » thai va, mai va, tri va
x hoi » xa hoi, o hoi, x ho
thiet » thieu

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

• If you are trying to use Boolean operators, they must be ALL CAPS: su ((sach y) OR (sac ky)) nang x hoi. hieu ve cham xuc ((va han) OR (va phan)) tai va thiet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su ((sach y) or (sac ky)) nang x hoi. hieu ve cham xuc ((va han) OR (va phan)) tai va thiet~".
• Adding a wildcard symbol may retrieve word variants: su ((sach y) or (sac ky)) nang x hoi. hieu ve cham xuc ((va han) OR (va phan)) tai va thiet*.