Perhaps you should try some spelling variations:
toc sach » hoc sach, doc sach, thuoc sach
hanh doi » thanh doi, hanh noi, hang doi
lang xa » lang ha, dang xay, lang van
hieu va » lieu va, hieu qua
thuc va » thuc vat, thuc dan, thuc day
xang xa » mang xa, ang xa, dang xay
doi cua » dai cua, hoi cua
tuc va » truc va, tuc xa, duc va
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 ((xang xa) OR (lang xa)) hoi. hieu va phat ((tuc va) or (thuc va)) hanh doi cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc sach y ((xang xa) OR (lang xa)) hoi. hieu va phat ((tuc va) OR (thuc va)) hanh doi cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc sach y ((xang xa) OR (lang xa)) hoi. hieu va phat ((tuc va) or (thuc va)) hanh doi cua te".
• Adding a wildcard symbol may retrieve word variants: toc sach y ((xang xa) OR (lang xa)) hoi. hieu va phat ((tuc va) or (thuc va)) hanh doi cua te*.