Perhaps you should try some spelling variations:
thanh dai » thanh hai, thanh tai, thanh dat
cua triet » cua viet, su triet, va triet
toc sach » hoc sach, doc sach, thuoc sach
va thanh » gia thanh, ban thanh, va tinh
hieu va » lieu va, hieu qua
cau tuc » cau truc, cau tu, cau luc
y nang » ly nang, may nang, day nang
v nang » va nang, vu nang, van nang
va cau » van cau, va cac, va dau
tuc va » thuc va, truc va, tuc xa

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 ((((y nang) OR (ky nang))) OR (v nang)) xa hoi. hieu va cau tuc va thanh dai cua triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc sach ((((y nang) OR (ky nang))) or (v nang)) xa hoi. hieu va cau tuc va thanh dai cua triet~".
• Adding a wildcard symbol may retrieve word variants: toc sach ((((y nang) OR (ky nang))) or (v nang)) xa hoi. hieu va cau tuc va thanh dai cua triet*.