Perhaps you should try some spelling variations:
thanh va » thanh van, hanh va, thanh ha
va thanh » gia thanh, ban thanh, va tinh
sach ty » sach tu, sach thu, xach tay
va cam » va cham, va cac, va cao
va cua » va chua, via cua, ca cua
ve cai » va cai, ve cac, ve tai
cua te » cua tu
x hoi » xa hoi, o hoi, x ho

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu ((sach ty) OR (sach y)) nang x hoi. hieu ((ve cai) or (va cam)) duc va thanh va cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach ty) OR (sach y)) nang x hoi. hieu ((ve cai) OR (va cam)) duc va thanh va cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((sach ty) OR (sach y)) nang x hoi. hieu ((ve cai) or (va cam)) duc va thanh va cua te".
• Adding a wildcard symbol may retrieve word variants: tu ((sach ty) OR (sach y)) nang x hoi. hieu ((ve cai) or (va cam)) duc va thanh va cua te*.