Perhaps you should try some spelling variations:
toc sach » hoc sach, doc sach, thuoc sach
hanh vai » hanh vi, hanh va, hanh tai
van hanh » van thanh, ban hanh, van anh
dang van » hoang van, hang va
vai cua » dai cua, hai cua, lai cua
xuc van » duc van, luc van, xuc ban
hieu va » lieu va, hieu qua
hieu ve » hieu van
sach ky » sac ky, sach y, sach ty
lang xa » lang ha, dang xay, lang van
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc sach ky ((lang xa) or (dang van)) hoi. ((hieu ve) or (hieu va)) cam xuc van hanh vai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc sach ky ((lang xa) OR (dang van)) hoi. ((hieu ve) OR (hieu va)) cam xuc van hanh vai cua te.
• Adding a wildcard symbol may retrieve word variants: toc sach ky ((lang xa) or (dang van)) hoi. ((hieu ve) or (hieu va)) cam xuc van hanh vai cua te*.