Perhaps you should try some spelling variations:
cham xuc » cam xuc, chat xuc, cham soc
vu sach » vu bach, su sach, vu khach
hanh di » hanh vi, hanh de, hang di
va hanh » van hanh, va thanh, va danh
hieu va » lieu va, hieu qua
sach ly » sach y, sach lo, sach ty
cua tre » cua te, cuu tre, cua triet
hieu ve » hieu van
nang ma » tang ma, sang ma, nang cao
mang xa » lang xa, mang may, dang xay
xuc va » duc va, tuc va, luc va
di cua » dai cua, doi cua, de cua

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