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

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