Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
trung va » truong va, trang va, trung ha
hieu van » hieu va, thien van, lieu va
van chat » cao chat
nang ma » tang ma, sang ma, nang cao
sach ky » sac ky, sach y, sach ty
truc va » thuc va, thuc vat
nang xa » nang x, lang xa, mang xa
xanh de » hanh de, xanh di, thanh de
cua tre » cua te, cuu tre, cua triet
de cua » le cua, te cua, dieu cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: thuat sach ky ((nang xa) or (nang ma)) hoi. hieu van chat ((truc va) or (trung va)) xanh de cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuat sach ky ((nang xa) OR (nang ma)) hoi. hieu van chat ((truc va) OR (trung va)) xanh de cua tre.
• Adding a wildcard symbol may retrieve word variants: thuat sach ky ((nang xa) or (nang ma)) hoi. hieu van chat ((truc va) or (trung va)) xanh de cua tre*.