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
sac ky » cac ky, sai ky
xuc va » duc va, tuc va, luc va
va han » va phan, van han, va hanh
tai va » thai va, tri va, dai 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 ((tai va) OR (mai 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 ((tai va) OR (mai 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 ((tai va) OR (mai va)) thiet*.