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
tai cuu » tai cuc, tai buu, tai cua
xuc ban » duc ban, cuc ban, quoc ban
cuu tre » cua tre, cau tren, cau treo
hanh xa » hanh va, hanh ma, hanh xu
ty hanh » ty thanh, ly hanh, tu hanh
ve cac » va cac, vien cac
ve cai » va cai, ve tai, ve cau

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((te sach) OR (toc sach)) ty hanh xa hoi. hieu ((ve cai) or (ve cac)) xuc ban thanh tai cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((te sach) OR (toc sach)) ty hanh xa hoi. hieu ((ve cai) OR (ve cac)) xuc ban thanh tai cuu tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((te sach) OR (toc sach)) ty hanh xa hoi. hieu ((ve cai) or (ve cac)) xuc ban thanh tai cuu tre".
• Adding a wildcard symbol may retrieve word variants: ((te sach) OR (toc sach)) ty hanh xa hoi. hieu ((ve cai) or (ve cac)) xuc ban thanh tai cuu tre*.