Perhaps you should try some spelling variations:
cham xuc » cam xuc, chat xuc, cham soc
nang mai » nang ma, nang tai, lang mai
hanh ki » hanh ky, hanh kien, thanh kim
xuc van » duc van, luc van, vuc van
va cham » va chat, va tham
hieu va » lieu va, hieu qua
sach vu » sach tu, sach uu, sach xu
mai hoi » mai khoi, dai hoi, lai hoi
sach va » sach xa, sach ha, sach dao
su viet » so viet

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 vu) OR (sach va)) nang mai hoi. hieu va cham xuc van ((hanh ki) or (hanh vi)) su viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach vu) OR (sach va)) nang mai hoi. hieu va cham xuc van ((hanh ki) OR (hanh vi)) su viet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((sach vu) OR (sach va)) nang mai hoi. hieu va cham xuc van ((hanh ki) or (hanh vi)) su viet".
• Adding a wildcard symbol may retrieve word variants: tu ((sach vu) OR (sach va)) nang mai hoi. hieu va cham xuc van ((hanh ki) or (hanh vi)) su viet*.