Perhaps you should try some spelling variations:
te sach » toc sach
sach ty » sach y, sach tu, sach thu
hanh de » hanh ve, hanh kem
hanh di » hanh vi, hang di, danh di
cuu tre » cua tre, cau tren, cau treo
nang xa » nang x, lang xa, nang ma
ty nang » ky nang, ty xang, ty hang
va nam » van nam, ha nam
va nay » va ngay, va cay

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