Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
hanh vai » hanh vi, hanh va, hanh tai
thuc day » thuc dan, thuc vat
dang van » hoang van, hang va
vai cua » dai cua, hai cua, lai cua
truc va » thuc va, thuc vat, trung va
ve chat » va chat, van chat
hieu ve » hieu va, hieu van
van hoi » van hoa, van hoc, van hoe
ky dang » ky nang, ky danh
te sach » toc sach
cua tre » cua te, cuu tre, cua triet

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((thu sach) OR (te sach)) ky dang van hoi. hieu ve chat ((truc va) OR (thuc day)) hanh vai cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((thu sach) OR (te sach)) ky dang van hoi. hieu ve chat ((truc va) OR (thuc day)) hanh vai cua tre".
• Adding a wildcard symbol may retrieve word variants: ((thu sach) OR (te sach)) ky dang van hoi. hieu ve chat ((truc va) OR (thuc day)) hanh vai cua tre*.