Perhaps you should try some spelling variations:
tu sach » thu sach, su sach, te sach
thuc va » thuc vat, thuc dan, thuc day
ly vang » ly hang, ly van, ly quang
vang xa » lang xa, mang xa, ang xa
hieu ve » hieu va, hieu van
hanh di » hanh vi, hanh de, hang di
sach ly » sach y, sach lo, sach ty
truc va » thuc vat, trung va
di cua » dai cua, doi cua, de cua
cua te » cua tu
xuc va » duc va, tuc va, luc va
ve cua » le cua, de cua, te cua

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 ly vang xa hoi. hieu ve cua ((xuc va) or (((truc va) or (thuc va)))) hanh di cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ly vang xa hoi. hieu ve cua ((xuc va) OR (((truc va) OR (thuc va)))) hanh di cua te.
• Adding a wildcard symbol may retrieve word variants: tu sach ly vang xa hoi. hieu ve cua ((xuc va) or (((truc va) or (thuc va)))) hanh di cua te*.