Perhaps you should try some spelling variations:
te sach » toc sach
dat cuu » dat cau, dat cua
dan dat » dung dat, dong dat, dinh dat
thuc va » thuc vat, thuc dan, thuc day
sach ky » sac ky, sach y, sach ty
vu cham » va cham, vu kham, tu cham
hieu vu » hieu va, hieu ve, hieu su
tang ma » mang may, tang van
nang ma » sang ma, nang cao, mang may
cuu tre » cua tre, cau tren, cau treo
xuc va » duc va, tuc va, luc va

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 ky ((nang ma) or (tang ma)) hoi. hieu vu cham ((xuc va) or (thuc va)) dan dat cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ky ((nang ma) OR (tang ma)) hoi. hieu vu cham ((xuc va) OR (thuc va)) dan dat cuu tre.
• Adding a wildcard symbol may retrieve word variants: te sach ky ((nang ma) or (tang ma)) hoi. hieu vu cham ((xuc va) or (thuc va)) dan dat cuu tre*.