Perhaps you should try some spelling variations:
thanh lap » thanh san, phan lap, thanh hai
toc sach » hoc sach, doc sach, thuoc sach
hieu van » hieu va, thien van, lieu va
van tham » van thanh, van tuan, van chat
tham tuc » tham thuc, thai tuc, nham thuc
va thanh » gia thanh, ban thanh, va tinh
ty nang » ky nang, ty hang, ly nang
cao hoi » cau hoi, co hoi, cao hoc
lap cuu » cap cuu, lap cua
cuu tre » cua tre, cau tren, cau treo
tuc va » thuc va, truc va, tuc xa

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 ((ty nang) OR (ty xang)) cao hoi. hieu van tham tuc va thanh lap cuu tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc sach ((ty nang) OR (ty xang)) cao hoi. hieu van tham tuc va thanh lap cuu tre".
• Adding a wildcard symbol may retrieve word variants: toc sach ((ty nang) OR (ty xang)) cao hoi. hieu van tham tuc va thanh lap cuu tre*.