Perhaps you should try some spelling variations:
toc sach » hoc sach, doc sach, thuoc sach
dang xay » dang van, van xay
hanh noi » ha noi, hanh vi, nang noi
xay hoi » xa hoi, tay hoi, cay phoi
hieu va » lieu va, hieu qua
truc va » thuc vat, trung va
thuc va » thuc vat, thuc dan, thuc day
noi cua » hoi cua, doi cua, moi cua
y dang » ky dang, 2 dang, _ dang
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc sach y dang xay hoi. hieu va phat ((truc va) or (thuc va)) hanh noi cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc sach y dang xay hoi. hieu va phat ((truc va) OR (thuc va)) hanh noi cua te.
• Adding a wildcard symbol may retrieve word variants: toc sach y dang xay hoi. hieu va phat ((truc va) or (thuc va)) hanh noi cua te*.