Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
thanh lai » thanh hai, thanh lap, thanh loi
cau tren » cu tren, dau tren, ca tren
sach ty » sach y, sach tu, sach thu
cuu tre » cua tre, cau treo
tu sach » thu sach, su sach, te sach
cam tuc » cam tu, nam thuc, dam thuc
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: tu sach ty nang xa hoi. hieu ve ((cam tuc) OR (cam xuc)) ban thanh lai ((cuu tre) or (cau tren))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ty nang xa hoi. hieu ve ((cam tuc) OR (cam xuc)) ban thanh lai ((cuu tre) OR (cau tren))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ty nang xa hoi. hieu ve ((cam tuc) OR (cam xuc)) ban thanh lai ((cuu tre) or (cau tren))*".