Perhaps you should try some spelling variations:
cham xuc » cam xuc, chat xuc, cham soc
vu sach » vu bach, su sach, vu khach
danh vi » dinh vi, danh di, danh va
vu cham » va cham, vu kham, tu cham
sach lo » sach dao, sach doi, sach hoi
hieu vu » hieu va, hieu ve, hieu su
sang ma » tang ma, nang ma, sang tao
nang xa » nang x, lang xa, nang ma
cua tre » cua te, cuu tre, cua triet
xuc va » duc va, tuc va, luc va

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu sach lo ((nang xa) or (sang ma)) hoi. hieu vu cham xuc va ((danh vi) OR (hanh vi)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sach lo ((nang xa) OR (sang ma)) hoi. hieu vu cham xuc va ((danh vi) OR (hanh vi)) cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu sach lo ((nang xa) or (sang ma)) hoi. hieu vu cham xuc va ((danh vi) OR (hanh vi)) cua tre".
• Adding a wildcard symbol may retrieve word variants: vu sach lo ((nang xa) or (sang ma)) hoi. hieu vu cham xuc va ((danh vi) OR (hanh vi)) cua tre*.