Perhaps you should try some spelling variations:
thanh dai » thanh hai, thanh tai, thanh dat
ban thanh » ban hanh, ban hang
toc sach » doc sach, thuoc sach, nuoc sach
pham cuc » pham chuc, pham duc, pham cua
hoc sach » hoc sinh, hoc cac, hoc anh
qua pham » quan pham, quy pham, qua cham
nang xa » nang x, nang ma, mang xa
cuc ban » cua ban, cac ban, cuu ban
lang xa » lang ha, dang xay, lang van
cua te » cua tu

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ((toc sach) OR (hoc sach)) ty ((nang xa) OR (lang xa)) hoi. hieu qua pham cuc ban thanh dai cua te~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((toc sach) OR (hoc sach)) ty ((nang xa) or (lang xa)) hoi. hieu qua pham cuc ban thanh dai cua te~".
• Adding a wildcard symbol may retrieve word variants: ((toc sach) OR (hoc sach)) ty ((nang xa) or (lang xa)) hoi. hieu qua pham cuc ban thanh dai cua te*.