Perhaps you should try some spelling variations:
thanh tai » thanh hai, thanh toan, doanh tai
ban thanh » ban hanh, ban hang
toc sach » hoc sach, doc sach, thuoc sach
cao quoc » cac quoc, cao thuoc, han quoc
quoc ban » quoc bao, quoc lan, quoc quan
ky lang » ky nang, ky dang, ky tang
lang xa » lang ha, dang xay, lang van
tai cua » thai cua, tai cuc, tri cua
te sac » te sach, te cac, te san
va cao » va cac, va co, va dao
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: ((te sac) or (toc sach)) ky lang xa hoi. lieu va cao quoc ban thanh tai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((te sac) OR (toc sach)) ky lang xa hoi. lieu va cao quoc ban thanh tai cua te.
• Adding a wildcard symbol may retrieve word variants: ((te sac) or (toc sach)) ky lang xa hoi. lieu va cao quoc ban thanh tai cua te*.