Perhaps you should try some spelling variations:
thuoc sach » hoc sach, nuoc sach, thuat sach
hieu van » hieu va, thien van, lieu va
cau phuc » chau phu, huu phuc, van phuc
hanh dai » hanh tai, hanh dao, vanh dai
cao hoi » cau hoi, co hoi, cao hoc
va hanh » van hanh, va thanh, va danh
cua tre » cua te, cuu tre, cua triet
y nang » ky nang, ly nang, v nang

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

• Performing a fuzzy search may retrieve terms with similar spellings: thuoc sach y nang cao hoi. hieu van ((cau phuc) OR (cau truc)) va hanh dai cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuoc sach y nang cao hoi. hieu van ((cau phuc) OR (cau truc)) va hanh dai cua tre".
• Adding a wildcard symbol may retrieve word variants: thuoc sach y nang cao hoi. hieu van ((cau phuc) OR (cau truc)) va hanh dai cua tre*.