Perhaps you should try some spelling variations:
toc sach » hoc sach, doc sach, thuoc sach
lang van » dang van, tang van, hoang van
thanh vi » hanh vi, thanh va, thanh ve
cau tren » cu tren, dau tren, ca tren
xuc gia » duc gia, luc gia, tuc gia
lang xa » lang ha, dang xay
hanh ve » hanh vi, hanh va, hanh kem
hieu ve » hieu va, hieu van
ve cam » ve cham, ve cac, va cam

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 y ((lang xa) or (lang van)) hoi. hieu ve cam xuc gia ((thanh vi) or (hanh ve)) cau tren~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc sach y ((lang xa) OR (lang van)) hoi. hieu ve cam xuc gia ((thanh vi) OR (hanh ve)) cau tren.
• Adding a wildcard symbol may retrieve word variants: toc sach y ((lang xa) or (lang van)) hoi. hieu ve cam xuc gia ((thanh vi) or (hanh ve)) cau tren*.