Perhaps you should try some spelling variations:
cham xuc » cam xuc, chat xuc, cham soc
nhan tai » hang tai, toan tai
su sach » so sach, vu sach
sach ky » sac ky, sach y, sach ty
nang ma » tang ma, sang ma, nang cao
hieu va » lieu va, hieu qua
va cham » va chat, va tham
xuc van » duc van, luc van, vuc van
han tai » hang tai, toan tai, nhan tao
van tai » von tai, van tuan
ma hoi » mai hoi, xa hoi, ma hoa
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 ma hoi. hieu va cham xuc van ((han tai) or (((nhan tai) OR (van tai)))) va thiet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ky nang ma hoi. hieu va cham xuc van ((han tai) OR (((nhan tai) OR (van tai)))) va thiet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ky nang ma hoi. hieu va cham xuc van ((han tai) or (((nhan tai) OR (van tai)))) va thiet".
• Adding a wildcard symbol may retrieve word variants: su sach ky nang ma hoi. hieu va cham xuc van ((han tai) or (((nhan tai) OR (van tai)))) va thiet*.