Perhaps you should try some spelling variations:
hanh dai » hanh tai, hanh dao, vanh dai
te sach » toc sach
sach tu » sach thu, cach tu, sach ty
cuu tre » cau tren, cau treo
va hanh » van hanh, va thanh, va danh
cua tre » cua te, cua triet, dua tren
cam tuc » cam xuc, nam thuc, dam thuc
hieu ve » hieu va, hieu van
nang xa » nang x, lang xa, nang ma
tu nang » tru nang, tu nong, tu nano
cam tu » cam thu, nam tu, dam tu

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 tu nang xa hoi. hieu ve ((cam tuc) or (cam tu)) va hanh dai ((cuu tre) OR (cua tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach tu nang xa hoi. hieu ve ((cam tuc) OR (cam tu)) va hanh dai ((cuu tre) OR (cua tre)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach tu nang xa hoi. hieu ve ((cam tuc) or (cam tu)) va hanh dai ((cuu tre) OR (cua tre))".
• Adding a wildcard symbol may retrieve word variants: te sach tu nang xa hoi. hieu ve ((cam tuc) or (cam tu)) va hanh dai ((cuu tre) OR (cua tre))*.