Perhaps you should try some spelling variations:
toc sach » doc sach, thuoc sach, nuoc sach
thu lang » thu hang, thu bang, phu lang
phat duy » pham duy, phat huy, phan duy
hoc sach » hoc sinh, hoc cac, hoc anh
lang xa » lang ha, dang xay, lang van
hieu va » lieu va, hieu qua
hanh di » hanh vi, hang di, danh di
hanh de » hanh ve, hanh kem
duy va » duy vat, duy van, day va
cua te » cua tu

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ((toc sach) OR (hoc sach)) thu lang xa hoi. hieu va phat duy va ((hanh di) OR (hanh de)) cua te~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((toc sach) OR (hoc sach)) thu lang xa hoi. hieu va phat duy va ((hanh di) or (hanh de)) cua te~".
• Adding a wildcard symbol may retrieve word variants: ((toc sach) OR (hoc sach)) thu lang xa hoi. hieu va phat duy va ((hanh di) or (hanh de)) cua te*.