Perhaps you should try some spelling variations:
cau tren » cu tren, dau tren, ca tren
phan dau » phan tu, hang dau
nang xa » nang x, lang xa, nang ma
ty nang » ky nang, ty xang, ty hang
van cau » van dau, van hau, van chat
sach ty » sach y, sach tu, sach thu
va hanh » van hanh, va thanh, va danh
cuu tre » cua tre, cau treo
te sach » toc sach
xuc va » duc va, tuc va, luc va

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 ((van cau) or (phan dau)) xuc va hanh vi ((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 ((van cau) OR (phan dau)) xuc va hanh vi ((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 ((van cau) or (phan dau)) xuc va hanh vi ((cuu tre) OR (cau tren))".
• Adding a wildcard symbol may retrieve word variants: te sach ty nang xa hoi. hieu ((van cau) or (phan dau)) xuc va hanh vi ((cuu tre) OR (cau tren))*.