Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
thanh ve » hanh ve, thanh va, thanh vien
te sach » toc sach
sach ty » sach y, sach tu, sach thu
soc ban » hoc ban, coc ban, so ban
hieu ve » hieu va, hieu van
hieu vu » hieu va, hieu su, dieu vu
nang xa » nang x, lang xa, nang ma
ty nang » ky nang, ty xang, ty hang
cua tu » cua tuc, cua su, cua te
cua cu » cua chu, cua cau, cua su

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 vu) or (hieu ve)) cham soc ban thanh ve ((cua tu) OR (cua cu))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ty nang xa hoi. ((hieu vu) OR (hieu ve)) cham soc ban thanh ve ((cua tu) OR (cua cu)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ty nang xa hoi. ((hieu vu) or (hieu ve)) cham soc ban thanh ve ((cua tu) OR (cua cu))".
• Adding a wildcard symbol may retrieve word variants: te sach ty nang xa hoi. ((hieu vu) or (hieu ve)) cham soc ban thanh ve ((cua tu) OR (cua cu))*.