Perhaps you should try some spelling variations:
cham xuc » cam xuc, chat xuc, cham soc
toan tai » toan tap, doanh tai, toan ban
su sach » so sach, vu sach
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
hieu ve » hieu va, hieu van
ve cham » va cham, ve chat, vu cham
han tai » hang tai, nhan tai, nhan tao
van tai » von tai, van tuan
xuc va » duc va, tuc va, luc va
thiet » thieu

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

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