Perhaps you should try some spelling variations:
vu sach » vu bach, su sach, vu khach
hanh di » hanh vi, hanh de, hang di
sach ly » sach y, sach lo, sach ty
hieu ve » hieu va, hieu van
ve cham » va cham, ve chat, vu cham
nang xa » nang x, lang xa, nang ma
sang ma » tang ma, nang ma, sang tao
cua tre » cua te, cuu tre, cua triet
xuc va » duc va, luc va, xac va
tuc va » thuc va, truc va, tuc xa
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 ((nang xa) or (sang ma)) hoi. hieu ve cham ((xuc va) OR (tuc va)) hanh di cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sach ly ((nang xa) OR (sang ma)) hoi. hieu ve cham ((xuc va) OR (tuc va)) hanh di cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu sach ly ((nang xa) or (sang ma)) hoi. hieu ve cham ((xuc va) OR (tuc va)) hanh di cua tre".
• Adding a wildcard symbol may retrieve word variants: vu sach ly ((nang xa) or (sang ma)) hoi. hieu ve cham ((xuc va) OR (tuc va)) hanh di cua tre*.