Perhaps you should try some spelling variations:
vien cac » vien bach, vien dai, vien da
lang van » dang van, tang van, hoang van
te sach » toc sach
xanh di » danh di, vanh dai, xanh tai
va xanh » va danh, va hanh, va anh
sach ty » sach y, sach tu, sach thu
cua tre » cua te, cuu tre, cua triet
nang ma » tang ma, sang ma, nang cao
tuc va » thuc va, truc va, tuc xa
di cua » dai cua, doi cua, de cua
ve cac » va cac

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach ty ((nang ma) or (lang van)) hoi. hieu ((ve cac) or (vien cac)) tuc va xanh di cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ty ((nang ma) OR (lang van)) hoi. hieu ((ve cac) OR (vien cac)) tuc va xanh di cua tre.
• Adding a wildcard symbol may retrieve word variants: te sach ty ((nang ma) or (lang van)) hoi. hieu ((ve cac) or (vien cac)) tuc va xanh di cua tre*.