Perhaps you should try some spelling variations:
thu nang » thi nang, thu hang, thu bang
hieu van » hieu va, thien van, lieu va
su triet » su viet, su tien, ve triet
sach thu » sach thue, sach thieu, sach tham
tu sach » thu sach, su sach, te sach
danh vi » dinh vi, danh di, danh va
xuc ban » duc ban, cuc ban, quoc ban
lam xuc » cam xuc, lam duoc
van lam » van nam
nang xa » nang x, lang xa, nang ma
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: tu sach thu nang xa hoi. hieu van lam xuc ban ((danh vi) OR (hanh vi)) ((su triet) or (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach thu nang xa hoi. hieu van lam xuc ban ((danh vi) OR (hanh vi)) ((su triet) OR (cua te))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach thu nang xa hoi. hieu van lam xuc ban ((danh vi) OR (hanh vi)) ((su triet) or (cua te))*".