Perhaps you should try some spelling variations:
su sach » so sach, vu sach
sach ty » sach y, sach tu, sach thu
ty nang » ky nang, ty xang, ty hang
nang xa » nang x, lang xa, nang ma
dau tuc » dau tu, dao tuc, cau truc
tuc van » thuc van, truc van, tuc va
hanh di » hanh de, hang di, danh di
cua tre » cuu tre, cua triet, dua tren
va dau » va dao
cua te » cua tu

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: su sach ty nang xa hoi. lieu va dau tuc van ((hanh di) OR (hanh vi)) ((cua tre) or (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ty nang xa hoi. lieu va dau tuc van ((hanh di) OR (hanh vi)) ((cua tre) OR (cua te))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ty nang xa hoi. lieu va dau tuc van ((hanh di) OR (hanh vi)) ((cua tre) or (cua te))*".