Perhaps you should try some spelling variations:
hanh dai » hanh tai, hanh dao, vanh dai
chat doc » chat hoc, chau doc, thuat doc
cham doc » cham soc, chau doc, pham duc
te sach » toc sach
sach ty » sach y, sach tu, sach thu
dai cuu » dai cua, dai huu
va hanh » van hanh, va thanh, va danh
hieu ve » hieu va, hieu van
lang xa » lang ha, dang xay, lang van
nang xa » nang x, nang ma, mang xa
cuu tre » cua tre, cau tren, cau treo

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 ty ((nang xa) OR (lang xa)) hoi. hieu ve ((cham doc) or (chat doc)) va hanh dai cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ty ((nang xa) OR (lang xa)) hoi. hieu ve ((cham doc) OR (chat doc)) va hanh dai cuu tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ty ((nang xa) OR (lang xa)) hoi. hieu ve ((cham doc) or (chat doc)) va hanh dai cuu tre*".