Perhaps you should try some spelling variations:
thai cua » than cua, tai cuc, tri cua
han thai » han tai, ban thai, van thai
so sach » so sanh, bo sach, co sach
hieu ve » hieu va, hieu van
hang xa » hoang xa, hang ca, lang xa
cua tre » cua te, cuu tre, cua triet
ve cam » ve cham, ve cac, va cam
luc va » duc va, loc va
tuc va » thuc va, truc va, tuc xa

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: so sach y ((hang xa) OR (hang va)) hoi. hieu ve cam ((luc va) OR (tuc va)) han thai cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "so sach y ((hang xa) OR (hang va)) hoi. hieu ve cam ((luc va) or (tuc va)) han thai cua tre~".
• Adding a wildcard symbol may retrieve word variants: so sach y ((hang xa) OR (hang va)) hoi. hieu ve cam ((luc va) or (tuc va)) han thai cua tre*.