Perhaps you should try some spelling variations:
thien van » thi van
van cham » van chat, van tham, va cham
cua tren » dua tren, ca tren, cua tre
nang ma » tang ma, sang ma, nang cao
sach ty » sach y, sach tu, sach thu
lang xa » lang ha, dang xay, lang van
soc gia » hoc gia, so gia, quoc gia
toc gia » toc giay, tac gia, quoc gia
hanh ve » hanh vi, hanh va, hanh kem
so sach » so sanh, bo sach, co sach
ve cua » le cua, de cua, te cua

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 ty ((lang xa) OR (nang ma)) hoi. thien van cham ((soc gia) OR (toc gia)) hanh ve cua tren~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "so sach ty ((lang xa) or (nang ma)) hoi. thien van cham ((soc gia) OR (toc gia)) hanh ve cua tren~".
• Adding a wildcard symbol may retrieve word variants: so sach ty ((lang xa) or (nang ma)) hoi. thien van cham ((soc gia) OR (toc gia)) hanh ve cua tren*.