Perhaps you should try some spelling variations:
thanh dai » thanh hai, thanh tai, thanh dat
toc sach » hoc sach, doc sach, thuoc sach
hang xa » hoang xa, hang va, hang ca
hieu va » lieu va, hieu qua
va cham » va chat, va tham
cuu ban » cuu van, cua ban, cuu nang
cuu san » cuu van, cua san, cuu nang
y hang » ly hang, ty hang, yu hang
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 hang xa hoi. hieu va cham ((cuu ban) or (cuu san)) thanh dai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc sach y hang xa hoi. hieu va cham ((cuu ban) OR (cuu san)) thanh dai cua te.
• Adding a wildcard symbol may retrieve word variants: toc sach y hang xa hoi. hieu va cham ((cuu ban) or (cuu san)) thanh dai cua te*.