Perhaps you should try some spelling variations:
te sach » toc sach
dat cua » dai cua, day cua, mat cua
dan dat » dung dat, dong dat, dinh dat
truc va » thuc va, thuc vat, trung va
sach ky » sac ky, sach y, sach ty
cua tre » cua te, cuu tre, cua triet
vu cham » va cham, vu kham, tu cham
hieu vu » hieu va, hieu ve, hieu su
nang ma » tang ma, sang ma, nang cao
xuc va » duc va, luc va, xac va
tuc va » thuc va, tuc xa, duc va
ma hoi » mai hoi, xa hoi, ma hoa

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 hoi. hieu vu cham ((xuc va) or (((tuc va) OR (truc va)))) dan dat cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ky nang ma hoi. hieu vu cham ((xuc va) OR (((tuc va) OR (truc va)))) dan dat cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ky nang ma hoi. hieu vu cham ((xuc va) or (((tuc va) OR (truc va)))) dan dat cua tre".
• Adding a wildcard symbol may retrieve word variants: te sach ky nang ma hoi. hieu vu cham ((xuc va) or (((tuc va) OR (truc va)))) dan dat cua tre*.